FreeBSD Security Advisories
2011-Dec-23 15:37 UTC
[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
============================================================================FreeBSD-SA-11:07.chroot
Security Advisory
The FreeBSD Project
Topic: Code execution via chrooted ftpd
Category: core
Module: libc
Announced: 2011-12-23
Affects: All supported versions of FreeBSD.
Corrected: 2011-12-23 15:00:37 UTC (RELENG_7, 7.4-STABLE)
2011-12-23 15:00:37 UTC (RELENG_7_4, 7.4-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_7_3, 7.3-RELEASE-p9)
2011-12-23 15:00:37 UTC (RELENG_8, 8.2-STABLE)
2011-12-23 15:00:37 UTC (RELENG_8_2, 8.2-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_8_1, 8.1-RELEASE-p7)
2011-12-23 15:00:37 UTC (RELENG_9, 9.0-STABLE)
2011-12-23 15:00:37 UTC (RELENG_9_0, 9.0-RELEASE)
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit <URL:http://security.FreeBSD.org/>.
I. Background
Chroot is an operation that changes the apparent root directory for the
current process and its children. The chroot(2) system call is widely
used in many applications as a measure of limiting a process's access to
the file system, as part of implementing privilege separation.
The nsdispatch(3) API implementation has a feature to reload its
configuration on demand. This feature may also load shared libraries
and run code provided by the library when requested by the configuration
file.
II. Problem Description
The nsdispatch(3) API has no mechanism to alert it to whether it is
operating within a chroot environment in which the standard paths for
configuration files and shared libraries may be untrustworthy.
The FreeBSD ftpd(8) daemon can be configured to use chroot(2), and
also uses the nsdispatch(3) API.
III. Impact
If ftpd is configured to place a user in a chroot environment, then an
attacker who can log in as that user may be able to run arbitrary code
with elevated ("root") privileges.
IV. Workaround
Don't use ftpd with the chroot option.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to 7-STABLE or 8-STABLE, or to
the RELENG_8_2, RELENG_8_1, RELENG_7_4, or RELENG_7_3 security
branch dated after the correction date.
2) To update your vulnerable system via a source code patch:
The following patches have been verified to apply to FreeBSD 7.4, 7.3,
8.2 and 8.1 systems.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
[FreeBSD 7.3 and 7.4]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch.asc
[FreeBSD 8.1 and 8.2]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
c) Recompile the operating system as described in
<URL: http://www.freebsd.org/handbook/makeworld.html> and reboot the
system.
3) To update your vulnerable system via a binary patch:
Systems running 7.4-RELEASE, 7.3-RELEASE, 8.2-RELEASE, or 8.1-RELEASE on
the i386 or amd64 platforms can be updated via the freebsd-update(8)
utility:
# freebsd-update fetch
# freebsd-update install
4) This update adds a new API, __FreeBSD_libc_enter_restricted_mode()
to the C library, which completely disables loading of shared libraries
upon return. Applications doing chroot(2) jails need to be updated
to call this API explicitly right after the chroot(2) operation as a
safety measure.
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
CVS:
Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_7
src/include/unistd.h 1.80.2.4
src/lib/libc/include/libc_private.h 1.17.2.4
src/lib/libc/Versions.def 1.3.2.3
src/lib/libc/net/nsdispatch.c 1.14.2.3
src/lib/libc/gen/Symbol.map 1.6.2.7
src/lib/libc/gen/Makefile.inc 1.128.2.6
src/lib/libc/gen/libc_dlopen.c 1.2.2.2
src/libexec/ftpd/popen.c 1.26.10.2
src/libexec/ftpd/ftpd.c 1.212.2.2
RELENG_7_4
src/UPDATING 1.507.2.36.2.7
src/sys/conf/newvers.sh 1.72.2.18.2.10
src/include/unistd.h 1.80.2.3.4.2
src/lib/libc/include/libc_private.h 1.17.2.3.4.2
src/lib/libc/Versions.def 1.3.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.14.2.2.2.2
src/lib/libc/gen/Symbol.map 1.6.2.6.4.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.4.2
src/lib/libc/gen/libc_dlopen.c 1.2.4.2
src/libexec/ftpd/popen.c 1.26.10.1.2.2
src/libexec/ftpd/ftpd.c 1.212.2.1.6.2
RELENG_7_3
src/UPDATING 1.507.2.34.2.11
src/sys/conf/newvers.sh 1.72.2.16.2.13
src/include/unistd.h 1.80.2.3.2.2
src/lib/libc/include/libc_private.h 1.17.2.3.2.2
src/lib/libc/Versions.def 1.3.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.14.2.1.6.2
src/lib/libc/gen/Symbol.map 1.6.2.6.2.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.2.1
src/libexec/ftpd/popen.c 1.26.24.2
src/libexec/ftpd/ftpd.c 1.212.2.1.4.2
RELENG_8
src/include/unistd.h 1.95.2.2
src/lib/libc/include/libc_private.h 1.20.2.3
src/lib/libc/Versions.def 1.8.2.3
src/lib/libc/net/nsdispatch.c 1.18.2.3
src/lib/libc/gen/Symbol.map 1.21.2.6
src/lib/libc/gen/Makefile.inc 1.144.2.7
src/lib/libc/gen/libc_dlopen.c 1.1.4.2
src/libexec/ftpd/popen.c 1.26.22.3
src/libexec/ftpd/ftpd.c 1.214.2.3
RELENG_8_2
src/UPDATING 1.632.2.19.2.7
src/sys/conf/newvers.sh 1.83.2.12.2.10
src/include/unistd.h 1.95.2.1.6.2
src/lib/libc/include/libc_private.h 1.20.2.2.4.2
src/lib/libc/Versions.def 1.8.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.18.2.2.2.2
src/lib/libc/gen/Symbol.map 1.21.2.5.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.6.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.8.2
src/libexec/ftpd/popen.c 1.26.22.2.4.2
src/libexec/ftpd/ftpd.c 1.214.2.1.6.2
RELENG_8_1
src/UPDATING 1.632.2.14.2.10
src/sys/conf/newvers.sh 1.83.2.10.2.11
src/include/unistd.h 1.95.2.1.4.2
src/lib/libc/include/libc_private.h 1.20.2.2.2.2
src/lib/libc/Versions.def 1.8.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.18.2.1.4.2
src/lib/libc/gen/Symbol.map 1.21.2.3.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.4.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.10.2
src/libexec/ftpd/popen.c 1.26.22.2.2.2
src/libexec/ftpd/ftpd.c 1.214.2.1.4.2
RELENG_9
src/include/unistd.h 1.101.2.2
src/lib/libc/include/libc_private.h 1.26.2.2
src/lib/libc/Versions.def 1.9.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.2
src/lib/libc/gen/Symbol.map 1.38.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.2
src/libexec/ftpd/popen.c 1.27.2.2
src/libexec/ftpd/ftpd.c 1.220.2.2
RELENG_9_0
src/include/unistd.h 1.101.2.1.2.2
src/lib/libc/include/libc_private.h 1.26.2.1.2.2
src/lib/libc/Versions.def 1.9.2.1.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.1.2.2
src/lib/libc/gen/Symbol.map 1.38.2.1.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.1.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.1.2.2
src/libexec/ftpd/popen.c 1.27.2.1.2.2
src/libexec/ftpd/ftpd.c 1.220.2.1.2.2
- -------------------------------------------------------------------------
Subversion:
Branch/path Revision
- -------------------------------------------------------------------------
stable/7/ r228843
releng/7.4/ r228843
releng/7.3/ r228843
stable/8/ r228843
releng/8.2/ r228843
releng/8.1/ r228843
stable/9/ r228843
releng/9.0/ r228843
- -------------------------------------------------------------------------
VII. References
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-11:07.chroot.asc
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FreeBSD Security Advisories
2011-Dec-23 15:37 UTC
FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
============================================================================FreeBSD-SA-11:07.chroot
Security Advisory
The FreeBSD Project
Topic: Code execution via chrooted ftpd
Category: core
Module: libc
Announced: 2011-12-23
Affects: All supported versions of FreeBSD.
Corrected: 2011-12-23 15:00:37 UTC (RELENG_7, 7.4-STABLE)
2011-12-23 15:00:37 UTC (RELENG_7_4, 7.4-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_7_3, 7.3-RELEASE-p9)
2011-12-23 15:00:37 UTC (RELENG_8, 8.2-STABLE)
2011-12-23 15:00:37 UTC (RELENG_8_2, 8.2-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_8_1, 8.1-RELEASE-p7)
2011-12-23 15:00:37 UTC (RELENG_9, 9.0-STABLE)
2011-12-23 15:00:37 UTC (RELENG_9_0, 9.0-RELEASE)
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit <URL:http://security.FreeBSD.org/>.
I. Background
Chroot is an operation that changes the apparent root directory for the
current process and its children. The chroot(2) system call is widely
used in many applications as a measure of limiting a process's access to
the file system, as part of implementing privilege separation.
The nsdispatch(3) API implementation has a feature to reload its
configuration on demand. This feature may also load shared libraries
and run code provided by the library when requested by the configuration
file.
II. Problem Description
The nsdispatch(3) API has no mechanism to alert it to whether it is
operating within a chroot environment in which the standard paths for
configuration files and shared libraries may be untrustworthy.
The FreeBSD ftpd(8) daemon can be configured to use chroot(2), and
also uses the nsdispatch(3) API.
III. Impact
If ftpd is configured to place a user in a chroot environment, then an
attacker who can log in as that user may be able to run arbitrary code
with elevated ("root") privileges.
IV. Workaround
Don't use ftpd with the chroot option.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to 7-STABLE or 8-STABLE, or to
the RELENG_8_2, RELENG_8_1, RELENG_7_4, or RELENG_7_3 security
branch dated after the correction date.
2) To update your vulnerable system via a source code patch:
The following patches have been verified to apply to FreeBSD 7.4, 7.3,
8.2 and 8.1 systems.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
[FreeBSD 7.3 and 7.4]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch.asc
[FreeBSD 8.1 and 8.2]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
c) Recompile the operating system as described in
<URL: http://www.freebsd.org/handbook/makeworld.html> and reboot the
system.
3) To update your vulnerable system via a binary patch:
Systems running 7.4-RELEASE, 7.3-RELEASE, 8.2-RELEASE, or 8.1-RELEASE on
the i386 or amd64 platforms can be updated via the freebsd-update(8)
utility:
# freebsd-update fetch
# freebsd-update install
4) This update adds a new API, __FreeBSD_libc_enter_restricted_mode()
to the C library, which completely disables loading of shared libraries
upon return. Applications doing chroot(2) jails need to be updated
to call this API explicitly right after the chroot(2) operation as a
safety measure.
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
CVS:
Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_7
src/include/unistd.h 1.80.2.4
src/lib/libc/include/libc_private.h 1.17.2.4
src/lib/libc/Versions.def 1.3.2.3
src/lib/libc/net/nsdispatch.c 1.14.2.3
src/lib/libc/gen/Symbol.map 1.6.2.7
src/lib/libc/gen/Makefile.inc 1.128.2.6
src/lib/libc/gen/libc_dlopen.c 1.2.2.2
src/libexec/ftpd/popen.c 1.26.10.2
src/libexec/ftpd/ftpd.c 1.212.2.2
RELENG_7_4
src/UPDATING 1.507.2.36.2.7
src/sys/conf/newvers.sh 1.72.2.18.2.10
src/include/unistd.h 1.80.2.3.4.2
src/lib/libc/include/libc_private.h 1.17.2.3.4.2
src/lib/libc/Versions.def 1.3.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.14.2.2.2.2
src/lib/libc/gen/Symbol.map 1.6.2.6.4.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.4.2
src/lib/libc/gen/libc_dlopen.c 1.2.4.2
src/libexec/ftpd/popen.c 1.26.10.1.2.2
src/libexec/ftpd/ftpd.c 1.212.2.1.6.2
RELENG_7_3
src/UPDATING 1.507.2.34.2.11
src/sys/conf/newvers.sh 1.72.2.16.2.13
src/include/unistd.h 1.80.2.3.2.2
src/lib/libc/include/libc_private.h 1.17.2.3.2.2
src/lib/libc/Versions.def 1.3.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.14.2.1.6.2
src/lib/libc/gen/Symbol.map 1.6.2.6.2.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.2.1
src/libexec/ftpd/popen.c 1.26.24.2
src/libexec/ftpd/ftpd.c 1.212.2.1.4.2
RELENG_8
src/include/unistd.h 1.95.2.2
src/lib/libc/include/libc_private.h 1.20.2.3
src/lib/libc/Versions.def 1.8.2.3
src/lib/libc/net/nsdispatch.c 1.18.2.3
src/lib/libc/gen/Symbol.map 1.21.2.6
src/lib/libc/gen/Makefile.inc 1.144.2.7
src/lib/libc/gen/libc_dlopen.c 1.1.4.2
src/libexec/ftpd/popen.c 1.26.22.3
src/libexec/ftpd/ftpd.c 1.214.2.3
RELENG_8_2
src/UPDATING 1.632.2.19.2.7
src/sys/conf/newvers.sh 1.83.2.12.2.10
src/include/unistd.h 1.95.2.1.6.2
src/lib/libc/include/libc_private.h 1.20.2.2.4.2
src/lib/libc/Versions.def 1.8.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.18.2.2.2.2
src/lib/libc/gen/Symbol.map 1.21.2.5.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.6.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.8.2
src/libexec/ftpd/popen.c 1.26.22.2.4.2
src/libexec/ftpd/ftpd.c 1.214.2.1.6.2
RELENG_8_1
src/UPDATING 1.632.2.14.2.10
src/sys/conf/newvers.sh 1.83.2.10.2.11
src/include/unistd.h 1.95.2.1.4.2
src/lib/libc/include/libc_private.h 1.20.2.2.2.2
src/lib/libc/Versions.def 1.8.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.18.2.1.4.2
src/lib/libc/gen/Symbol.map 1.21.2.3.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.4.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.10.2
src/libexec/ftpd/popen.c 1.26.22.2.2.2
src/libexec/ftpd/ftpd.c 1.214.2.1.4.2
RELENG_9
src/include/unistd.h 1.101.2.2
src/lib/libc/include/libc_private.h 1.26.2.2
src/lib/libc/Versions.def 1.9.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.2
src/lib/libc/gen/Symbol.map 1.38.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.2
src/libexec/ftpd/popen.c 1.27.2.2
src/libexec/ftpd/ftpd.c 1.220.2.2
RELENG_9_0
src/include/unistd.h 1.101.2.1.2.2
src/lib/libc/include/libc_private.h 1.26.2.1.2.2
src/lib/libc/Versions.def 1.9.2.1.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.1.2.2
src/lib/libc/gen/Symbol.map 1.38.2.1.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.1.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.1.2.2
src/libexec/ftpd/popen.c 1.27.2.1.2.2
src/libexec/ftpd/ftpd.c 1.220.2.1.2.2
- -------------------------------------------------------------------------
Subversion:
Branch/path Revision
- -------------------------------------------------------------------------
stable/7/ r228843
releng/7.4/ r228843
releng/7.3/ r228843
stable/8/ r228843
releng/8.2/ r228843
releng/8.1/ r228843
stable/9/ r228843
releng/9.0/ r228843
- -------------------------------------------------------------------------
VII. References
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-11:07.chroot.asc
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FreeBSD Security Advisories
2011-Dec-23 15:37 UTC
FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
============================================================================FreeBSD-SA-11:07.chroot
Security Advisory
The FreeBSD Project
Topic: Code execution via chrooted ftpd
Category: core
Module: libc
Announced: 2011-12-23
Affects: All supported versions of FreeBSD.
Corrected: 2011-12-23 15:00:37 UTC (RELENG_7, 7.4-STABLE)
2011-12-23 15:00:37 UTC (RELENG_7_4, 7.4-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_7_3, 7.3-RELEASE-p9)
2011-12-23 15:00:37 UTC (RELENG_8, 8.2-STABLE)
2011-12-23 15:00:37 UTC (RELENG_8_2, 8.2-RELEASE-p5)
2011-12-23 15:00:37 UTC (RELENG_8_1, 8.1-RELEASE-p7)
2011-12-23 15:00:37 UTC (RELENG_9, 9.0-STABLE)
2011-12-23 15:00:37 UTC (RELENG_9_0, 9.0-RELEASE)
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit <URL:http://security.FreeBSD.org/>.
I. Background
Chroot is an operation that changes the apparent root directory for the
current process and its children. The chroot(2) system call is widely
used in many applications as a measure of limiting a process's access to
the file system, as part of implementing privilege separation.
The nsdispatch(3) API implementation has a feature to reload its
configuration on demand. This feature may also load shared libraries
and run code provided by the library when requested by the configuration
file.
II. Problem Description
The nsdispatch(3) API has no mechanism to alert it to whether it is
operating within a chroot environment in which the standard paths for
configuration files and shared libraries may be untrustworthy.
The FreeBSD ftpd(8) daemon can be configured to use chroot(2), and
also uses the nsdispatch(3) API.
III. Impact
If ftpd is configured to place a user in a chroot environment, then an
attacker who can log in as that user may be able to run arbitrary code
with elevated ("root") privileges.
IV. Workaround
Don't use ftpd with the chroot option.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to 7-STABLE or 8-STABLE, or to
the RELENG_8_2, RELENG_8_1, RELENG_7_4, or RELENG_7_3 security
branch dated after the correction date.
2) To update your vulnerable system via a source code patch:
The following patches have been verified to apply to FreeBSD 7.4, 7.3,
8.2 and 8.1 systems.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
[FreeBSD 7.3 and 7.4]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot7.patch.asc
[FreeBSD 8.1 and 8.2]
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch
# fetch http://security.FreeBSD.org/patches/SA-11:07/chroot8.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
c) Recompile the operating system as described in
<URL: http://www.freebsd.org/handbook/makeworld.html> and reboot the
system.
3) To update your vulnerable system via a binary patch:
Systems running 7.4-RELEASE, 7.3-RELEASE, 8.2-RELEASE, or 8.1-RELEASE on
the i386 or amd64 platforms can be updated via the freebsd-update(8)
utility:
# freebsd-update fetch
# freebsd-update install
4) This update adds a new API, __FreeBSD_libc_enter_restricted_mode()
to the C library, which completely disables loading of shared libraries
upon return. Applications doing chroot(2) jails need to be updated
to call this API explicitly right after the chroot(2) operation as a
safety measure.
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
CVS:
Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_7
src/include/unistd.h 1.80.2.4
src/lib/libc/include/libc_private.h 1.17.2.4
src/lib/libc/Versions.def 1.3.2.3
src/lib/libc/net/nsdispatch.c 1.14.2.3
src/lib/libc/gen/Symbol.map 1.6.2.7
src/lib/libc/gen/Makefile.inc 1.128.2.6
src/lib/libc/gen/libc_dlopen.c 1.2.2.2
src/libexec/ftpd/popen.c 1.26.10.2
src/libexec/ftpd/ftpd.c 1.212.2.2
RELENG_7_4
src/UPDATING 1.507.2.36.2.7
src/sys/conf/newvers.sh 1.72.2.18.2.10
src/include/unistd.h 1.80.2.3.4.2
src/lib/libc/include/libc_private.h 1.17.2.3.4.2
src/lib/libc/Versions.def 1.3.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.14.2.2.2.2
src/lib/libc/gen/Symbol.map 1.6.2.6.4.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.4.2
src/lib/libc/gen/libc_dlopen.c 1.2.4.2
src/libexec/ftpd/popen.c 1.26.10.1.2.2
src/libexec/ftpd/ftpd.c 1.212.2.1.6.2
RELENG_7_3
src/UPDATING 1.507.2.34.2.11
src/sys/conf/newvers.sh 1.72.2.16.2.13
src/include/unistd.h 1.80.2.3.2.2
src/lib/libc/include/libc_private.h 1.17.2.3.2.2
src/lib/libc/Versions.def 1.3.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.14.2.1.6.2
src/lib/libc/gen/Symbol.map 1.6.2.6.2.2
src/lib/libc/gen/Makefile.inc 1.128.2.5.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.2.1
src/libexec/ftpd/popen.c 1.26.24.2
src/libexec/ftpd/ftpd.c 1.212.2.1.4.2
RELENG_8
src/include/unistd.h 1.95.2.2
src/lib/libc/include/libc_private.h 1.20.2.3
src/lib/libc/Versions.def 1.8.2.3
src/lib/libc/net/nsdispatch.c 1.18.2.3
src/lib/libc/gen/Symbol.map 1.21.2.6
src/lib/libc/gen/Makefile.inc 1.144.2.7
src/lib/libc/gen/libc_dlopen.c 1.1.4.2
src/libexec/ftpd/popen.c 1.26.22.3
src/libexec/ftpd/ftpd.c 1.214.2.3
RELENG_8_2
src/UPDATING 1.632.2.19.2.7
src/sys/conf/newvers.sh 1.83.2.12.2.10
src/include/unistd.h 1.95.2.1.6.2
src/lib/libc/include/libc_private.h 1.20.2.2.4.2
src/lib/libc/Versions.def 1.8.2.2.4.2
src/lib/libc/net/nsdispatch.c 1.18.2.2.2.2
src/lib/libc/gen/Symbol.map 1.21.2.5.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.6.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.8.2
src/libexec/ftpd/popen.c 1.26.22.2.4.2
src/libexec/ftpd/ftpd.c 1.214.2.1.6.2
RELENG_8_1
src/UPDATING 1.632.2.14.2.10
src/sys/conf/newvers.sh 1.83.2.10.2.11
src/include/unistd.h 1.95.2.1.4.2
src/lib/libc/include/libc_private.h 1.20.2.2.2.2
src/lib/libc/Versions.def 1.8.2.2.2.2
src/lib/libc/net/nsdispatch.c 1.18.2.1.4.2
src/lib/libc/gen/Symbol.map 1.21.2.3.2.2
src/lib/libc/gen/Makefile.inc 1.144.2.4.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.10.2
src/libexec/ftpd/popen.c 1.26.22.2.2.2
src/libexec/ftpd/ftpd.c 1.214.2.1.4.2
RELENG_9
src/include/unistd.h 1.101.2.2
src/lib/libc/include/libc_private.h 1.26.2.2
src/lib/libc/Versions.def 1.9.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.2
src/lib/libc/gen/Symbol.map 1.38.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.2
src/lib/libc/gen/libc_dlopen.c 1.1.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.2
src/libexec/ftpd/popen.c 1.27.2.2
src/libexec/ftpd/ftpd.c 1.220.2.2
RELENG_9_0
src/include/unistd.h 1.101.2.1.2.2
src/lib/libc/include/libc_private.h 1.26.2.1.2.2
src/lib/libc/Versions.def 1.9.2.1.2.2
src/lib/libc/net/nsdispatch.c 1.19.2.1.2.2
src/lib/libc/gen/Symbol.map 1.38.2.1.2.2
src/lib/libc/gen/Makefile.inc 1.159.2.1.2.2
src/lib/libc/gen/libc_dlopen.c 1.2.6.2
src/lib/libc/iconv/citrus_module.c 1.1.2.1.2.2
src/libexec/ftpd/popen.c 1.27.2.1.2.2
src/libexec/ftpd/ftpd.c 1.220.2.1.2.2
- -------------------------------------------------------------------------
Subversion:
Branch/path Revision
- -------------------------------------------------------------------------
stable/7/ r228843
releng/7.4/ r228843
releng/7.3/ r228843
stable/8/ r228843
releng/8.2/ r228843
releng/8.1/ r228843
stable/9/ r228843
releng/9.0/ r228843
- -------------------------------------------------------------------------
VII. References
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-11:07.chroot.asc
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Brett Glass
2011-Dec-24 01:08 UTC
[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
What ports, etc. must one recompile after applying this patch? It appears to modify libc. --Brett Glass
Fabian Wenk
2011-Dec-24 10:56 UTC
[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
Hello Brett On 24.12.2011 01:19, Brett Glass wrote:> What ports, etc. must one recompile after applying this patch? It > appears to modify libc.Recompiling of ports is only needed when the port (the program) is statically linked and those includes the libraries. Usually program binaries are dynamically linked to the libraries, so a program loads the library when they are needed. In this case the reboot takes care of the running daemons / programs to use the new build of libc. bye Fabian
Xin LI
2011-Dec-24 11:22 UTC
[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-11:07.chroot
On Fri, Dec 23, 2011 at 4:19 PM, Brett Glass <brett@lariat.net> wrote:> What ports, etc. must one recompile after applying this patch? It appears to > modify libc.proftpd has to be rebuilt with a new patch which is currently available from portsnap. pureftpd and vsftpd are safe as far as I have tested. Cheers, -- Xin LI <delphij@delphij.net> https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die
Dewayne Geraghty
2011-Dec-24 12:38 UTC
FreeBSD Security Advisory FreeBSD-SA-11:07.chroot - gcc 4.2.2+
Do the changes to libc imply that community members that install and build their system using gcc 4.2.2+ will remain vulnerable? If so, should the /usr/src/UPDATING reflect this ongoing exposure? (I note that 8.2S uses gcc version 4.2.2 20070831 prerelease [FreeBSD] 9.0S has gcc 4.2.1) Kind regards, Dewayne
Xin Li
2011-Dec-26 05:27 UTC
FreeBSD Security Advisory FreeBSD-SA-11:07.chroot - gcc 4.2.2+
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/23/11 17:54, Dewayne Geraghty wrote:> Do the changes to libc imply that community members that install > and build their system using gcc 4.2.2+ will remain vulnerable? If > so, should the /usr/src/UPDATING reflect this ongoing exposure? > > (I note that 8.2S uses gcc version 4.2.2 20070831 prerelease > [FreeBSD] 9.0S has gcc 4.2.1)This have nothing to do with gcc as far as I can tell. It does require changes to your individual applications if they do chroot into untrusted environment. Cheers, - -- Xin LI <delphij@delphij.net> https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk74BccACgkQOfuToMruuMCslACfXhGAxgpMlYwsPS/01JXoHqED o/UAnAyoYtv3vlRBo0szGptyh+qYaeEQ =cJ1L -----END PGP SIGNATURE-----