FreeBSD Security Advisories
2013-Apr-02 18:04 UTC
FreeBSD Security Advisory FreeBSD-SA-13:04.bind
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============================================================================FreeBSD-SA-13:04.bind
Security Advisory
The FreeBSD Project
Topic: BIND remote denial of service
Category: contrib
Module: bind
Announced: 2013-04-02
Credits: Matthew Horsfall of Dyn, Inc.
Affects: FreeBSD 8.4-BETA1 and FreeBSD 9.x
Corrected: 2013-03-28 05:35:46 UTC (stable/8, 8.4-BETA1)
2013-03-28 05:39:45 UTC (stable/9, 9.1-STABLE)
2013-04-02 17:34:42 UTC (releng/9.0, 9.0-RELEASE-p7)
2013-04-02 17:34:42 UTC (releng/9.1, 9.1-RELEASE-p2)
CVE Name: CVE-2013-2266
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
BIND 9 is an implementation of the Domain Name System (DNS) protocols.
The named(8) daemon is an Internet Domain Name Server. The libdns
library is a library of DNS protocol support functions.
II. Problem Description
A flaw in a library used by BIND allows an attacker to deliberately
cause excessive memory consumption by the named(8) process. This
affects both recursive and authoritative servers.
III. Impact
A remote attacker can cause the named(8) daemon to consume all available
memory and crash, resulting in a denial of service. Applications linked
with the libdns library, for instance dig(1), may also be affected.
IV. Workaround
No workaround is available, but systems not running named(8) service
and not using base system DNS utilities are not affected.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) 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 the applicable
FreeBSD release branches.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
# fetch http://security.FreeBSD.org/patches/SA-13:04/bind.patch
# fetch http://security.FreeBSD.org/patches/SA-13:04/bind.patch.asc
# gpg --verify bind.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
Recompile the operating system using buildworld and installworld as
described in <URL:http://www.FreeBSD.org/handbook/makeworld.html>.
Restart the named daemon, or reboot the system.
3) To update your vulnerable system via a binary patch:
Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:
# freebsd-update fetch
# freebsd-update install
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
Branch/path Revision
- -------------------------------------------------------------------------
stable/8/ r248807
stable/9/ r248808
releng/9.0/ r249029
releng/9.1/ r249029
- -------------------------------------------------------------------------
VII. References
https://kb.isc.org/article/AA-00871
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2266
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-13:04.bind.asc
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Merve, Bind kullandigimiz yerlerin guncellenmesini saglar misiniz? hdemir. On 02-04-2013 21:04, FreeBSD Security Advisories wrote:> ============================================================================> >FreeBSD-SA-13:04.bind Security Advisory> The FreeBSD Project > > Topic: BIND remote denial of service > > Category: contrib Module: bind Announced: > 2013-04-02 Credits: Matthew Horsfall of Dyn, Inc. Affects: > FreeBSD 8.4-BETA1 and FreeBSD 9.x Corrected: 2013-03-28 > 05:35:46 UTC (stable/8, 8.4-BETA1) 2013-03-28 05:39:45 UTC > (stable/9, 9.1-STABLE) 2013-04-02 17:34:42 UTC (releng/9.0, > 9.0-RELEASE-p7) 2013-04-02 17:34:42 UTC (releng/9.1, > 9.1-RELEASE-p2) CVE Name: CVE-2013-2266 > > 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 > > BIND 9 is an implementation of the Domain Name System (DNS) > protocols. The named(8) daemon is an Internet Domain Name Server. > The libdns library is a library of DNS protocol support functions. > > II. Problem Description > > A flaw in a library used by BIND allows an attacker to > deliberately cause excessive memory consumption by the named(8) > process. This affects both recursive and authoritative servers. > > III. Impact > > A remote attacker can cause the named(8) daemon to consume all > available memory and crash, resulting in a denial of service. > Applications linked with the libdns library, for instance dig(1), > may also be affected. > > IV. Workaround > > No workaround is available, but systems not running named(8) > service and not using base system DNS utilities are not affected. > > V. Solution > > Perform one of the following: > > 1) Upgrade your vulnerable system to a supported FreeBSD stable or > release / security branch (releng) 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 the > applicable FreeBSD release branches. > > a) Download the relevant patch from the location below, and verify > the detached PGP signature using your PGP utility. > > # fetch http://security.FreeBSD.org/patches/SA-13:04/bind.patch # > fetch http://security.FreeBSD.org/patches/SA-13:04/bind.patch.asc # > gpg --verify bind.patch.asc > > b) Execute the following commands as root: > > # cd /usr/src # patch < /path/to/patch > > Recompile the operating system using buildworld and installworld > as described in > <URL:http://www.FreeBSD.org/handbook/makeworld.html>. > > Restart the named daemon, or reboot the system. > > 3) To update your vulnerable system via a binary patch: > > Systems running a RELEASE version of FreeBSD on the i386 or amd64 > platforms can be updated via the freebsd-update(8) utility: > > # freebsd-update fetch # freebsd-update install > > VI. Correction details > > The following list contains the revision numbers of each file that > was corrected in FreeBSD. > > Branch/path > Revision > ------------------------------------------------------------------------- > >stable/8/ r248807> stable/9/ > r248808 releng/9.0/ > r249029 releng/9.1/ > r249029 > ------------------------------------------------------------------------- > > VII. References > > https://kb.isc.org/article/AA-00871 > > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2266 > > The latest revision of this advisory is available at > http://security.FreeBSD.org/advisories/FreeBSD-SA-13:04.bind.asc > _______________________________________________ > freebsd-security at freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security To > unsubscribe, send any mail to > "freebsd-security-unsubscribe at freebsd.org" >-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJRW/r4AAoJEISpBAM51qlEN58IAK74u4pPydC5kDSQlYeHKTG8 vt1Hzl8tfjfNzs9kKb4pDhirQzCjFlqXWoAtT88K1WU585deV1WJafPt5PpRQK+h SwPBqe1Wunou8ELzUisZq/jdF+vd2mgYP4Vq2WBUZUrwjPFXOJrlg5aAq919o42v h0QsiTVxD+FR3LJAg0bA/8FFyjZO/rFkstYZen9N6Mp1D4u46UgVLnK4HU1pMyfu s0m5A2yHcXv1dyEGOpfxStwk41ei82V+Ol56ioOj+vGSKfJ2+4MbUx7P89HwNJyC w/3NmY6HSDkHHYXjcoj2y+2yVcSF7st4Hfi6NJ32pPqMADzK1t/1ySaJn3bPkhQ=YgI6 -----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Sorry My mistake. hdemir. On 03-04-2013 12:48, Husnu Demir wrote:> Merve, > > Bind kullandigimiz yerlerin guncellenmesini saglar misiniz? > > hdemir. > > > On 02-04-2013 21:04, FreeBSD Security Advisories wrote: >> ============================================================================> >> > > FreeBSD-SA-13:04.bind > Security Advisory >> The FreeBSD Project > >> Topic: BIND remote denial of service > >> Category: contrib Module: bind Announced: >> 2013-04-02 Credits: Matthew Horsfall of Dyn, Inc. >> Affects: FreeBSD 8.4-BETA1 and FreeBSD 9.x Corrected: >> 2013-03-28 05:35:46 UTC (stable/8, 8.4-BETA1) 2013-03-28 05:39:45 >> UTC (stable/9, 9.1-STABLE) 2013-04-02 17:34:42 UTC (releng/9.0, >> 9.0-RELEASE-p7) 2013-04-02 17:34:42 UTC (releng/9.1, >> 9.1-RELEASE-p2) CVE Name: CVE-2013-2266 > >> 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 > >> BIND 9 is an implementation of the Domain Name System (DNS) >> protocols. The named(8) daemon is an Internet Domain Name >> Server. The libdns library is a library of DNS protocol support >> functions. > >> II. Problem Description > >> A flaw in a library used by BIND allows an attacker to >> deliberately cause excessive memory consumption by the named(8) >> process. This affects both recursive and authoritative servers. > >> III. Impact > >> A remote attacker can cause the named(8) daemon to consume all >> available memory and crash, resulting in a denial of service. >> Applications linked with the libdns library, for instance >> dig(1), may also be affected. > >> IV. Workaround > >> No workaround is available, but systems not running named(8) >> service and not using base system DNS utilities are not >> affected. > >> V. Solution > >> Perform one of the following: > >> 1) Upgrade your vulnerable system to a supported FreeBSD stable >> or release / security branch (releng) 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 the >> applicable FreeBSD release branches. > >> a) Download the relevant patch from the location below, and >> verify the detached PGP signature using your PGP utility. > >> # fetch http://security.FreeBSD.org/patches/SA-13:04/bind.patch >> # fetch >> http://security.FreeBSD.org/patches/SA-13:04/bind.patch.asc # gpg >> --verify bind.patch.asc > >> b) Execute the following commands as root: > >> # cd /usr/src # patch < /path/to/patch > >> Recompile the operating system using buildworld and installworld >> as described in >> <URL:http://www.FreeBSD.org/handbook/makeworld.html>. > >> Restart the named daemon, or reboot the system. > >> 3) To update your vulnerable system via a binary patch: > >> Systems running a RELEASE version of FreeBSD on the i386 or amd64 >> platforms can be updated via the freebsd-update(8) utility: > >> # freebsd-update fetch # freebsd-update install > >> VI. Correction details > >> The following list contains the revision numbers of each file >> that was corrected in FreeBSD. > >> Branch/path Revision >> ------------------------------------------------------------------------- > >> > > stable/8/ > r248807 >> stable/9/ r248808 releng/9.0/ r249029 releng/9.1/ r249029 >> ------------------------------------------------------------------------- > >> VII. References > >> https://kb.isc.org/article/AA-00871 > >> http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2266 > >> The latest revision of this advisory is available at >> http://security.FreeBSD.org/advisories/FreeBSD-SA-13:04.bind.asc >> _______________________________________________ >> freebsd-security at freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-security To >> unsubscribe, send any mail to >> "freebsd-security-unsubscribe at freebsd.org" > >-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJRW/4TAAoJEISpBAM51qlEpp8IAMt9BAElqcEJPC/LMFeM02m6 YUD4PK1r4cCDYinx3cfJkvWFEB0ogyLTOPC8xm/yqqW33WzyeXa9hamGqdNP+64q Zwp1prymEzfqnhtrv+j8NNkdfx7GJ4+eTdSnd/692L80rf6Dm6fgM4pahYjRpkDD iQc2PGnwfbz3hrNQTTRm9wKbympt/DcGJkWAvgU7JCWFBGS0icHuyCGBVVDNDtdn Fdc4jH9if9AO/s3YKWs8pRC8+9Me79AGAAsUSBA00rmsjF0NzAqDuL4mddNuZAPD /7xzwCRhgDVBa1kqYd8ek5u1dL6faD4BVonAJ2Oj6qwofwxDbGi+NWVsLXgHDBU=Fb6p -----END PGP SIGNATURE-----