similar to: [Bug 1903] New: bindresvport_sa() does not validate non-zero struct sockaddr * port is within intended range

Apologies if this is a FAQ; I couldn't find an answer on openssh.com or the mailing list archive.... Commercial SSH (I looked at 1.2.30) allocates privileged ports by counting /downwards/ from 1023, so that it will obtain a socket with (roughly speaking) the highest available privileged port number. This also appears to be the behaviour of rsh et al: (from sshconnect.c; whitespace elided)

On Fri, Jul 22, 2016 at 10:18 PM, Corinna Vinschen <vinschen at redhat.com> wrote: [...] > Hmm. If that only affects Cygwin, and if defines.h is not synced anyway, > what about getting rid of the configure stuff entirely? > > Tested counterproposal: Looks reasonable. It's late here so I'm going to look at it tomorrow. > As for the comment preceeding the definition,

On Fri, Jul 22, 2016 at 12:05:53PM +0200, Corinna Vinschen wrote: [...] > This version doesn't build on Cygwin anymore. The reason is that > various configure tests fail. > > The culprit is the new definition of IPPORT_RESERVED to 0 in configure.ac. Sigh. How about putting it in defines.h instead? includes.h includes netinet/in.h from whence the definition of IPPORT_RESERVED

FreeBSD doesn't have a fixed range of reserved ports, although it still has IPPORT_RESERVED for compatibility; instead, the last reserved port number is indicated by the net.inet.ip.portrange.reservedhigh sysctl, which defaults to IPPORT_RESERVED - 1. The attached patch modifies add_local_forward() to use this sysctl instead of IPPORT_RESERVED on FreeBSD. DES -- Dag-Erling Sm?rgrav - des at

Hi all, I have a requirement to run NFS read-only in an Internet-facing colocation environment. I am not happy with packet filters alone around rpcbind, call me paranoid, so I just spent the last few minutes cutting this patch. As you are aware, RPC applications can be forced to listen on a known port through the sin/sa argument to bindresvport[_sa](). Why several Linux distributions have this

Sorry if I'm duplicating an existing patch, but... On systems with no seteuid() that have setreuid() there is an emulation, but if both are lacking (but we do have setresuid()), nothing is done. The following seems to be right, but I've only got one machine (running an ancient version of HP-UX) which needs this so it may not be general: --cut-here-- --- config.h.in.orig Thu Jun 7

Has ANYONE been able to verify that Rhosts authentication works with 3.4.p1? Does it work with other SSHv2 implementations? Anybody tried it on a RedHat 7.3 system? Also, I'm curious about this code I found in sshd.c: /* * Check that the connection comes from a privileged port. * Rhosts-Authentication only makes sense from priviledged * programs. Of course, if

Hi, I sill need some help. I tried to remove cdrom and USB controllers from qemu xml definition file. It doesn't help. Still same Failed to create chardev when trying to run a Vms that run on my local Fedora 20 computer. Any idea? Thanks Patrick Le 15/06/2014 11:57, Patrick Chemla a écrit : > > Sorry for posting bad debug info. > > Here are the right one with the chardev

Hi, I've sent that patch once already but it seems more or less forgotten in the tumultuous days of the latest vulnerability. It adds a new define NO_IPPORT_RESERVED_CONCEPT which can be defined on platforms not supporting the concept of "privileged" ports only accessible by privileged users but which allow everyone to use these ports. This patch removes some Cygwin dependencies

Hi! Sorry if this has already been reported or even fixed, I didn't search very thoroughly. Here's a patch to make dynamic -R remote port allocation work even when not connecting as root. Without the patch I got that "Server has disabled port forwarding." message visible in the patch. OpenSSH version I'm using is openssh-5.2p1, compiled from official source package,

Sorry for posting bad debug info. Here are the right one with the chardev error only: # virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 2048 -d [dim., 15 juin 2014 10:56:25 virt-install 9795] DEBUG (cli:187) Launched with command line: /usr/share/virt-manager/virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom

Hi, It it can help, I run virt-install with -d option # virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 2048 -d [dim., 15 juin 2014 10:45:15 virt-install 9074] DEBUG (cli:187) Launched with command line: /usr/share/virt-manager/virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom

Attached is a very small patch that allows the ssh clients to use the socks5 library. It should work with socks4 but is untested. Tested on linux only configure --with-socks configure --with-socks5 Also included is a configure option to disable scp statistics --disable-scp-stats modified files openssh-2.9.9p2/acconfig.h openssh-2.9.9p2/channels.c openssh-2.9.9p2/configure.in

> Winton-- > > Excellent! Absolutely wonderful. > > I'm wondering which apps/encapsulators support 4A? This gets me > around > the DNS leakage problem quite nicely. > > Incidentally, we do need SOCKS5 support -- if for no other > reason, the > fact that there's *operating system* level support in OSX for SOCKS5 > redirection. So

I am enclosing a context diff of the changes that I made to get openssh working on UWIN. UWIN is a UNIX operating system layer that runs on Win32 systems. For more information on UWIN go to http://www.research.att.com/sw/tools/uwin/. I also ran configure using -with-cppflags=-D_BSDCOMP=2. I don't know where that information would go with the source code. Let me know if you need more

Hello, The ssh client checks for privileged ports when a local forward is about to be set. This is done in readconf.c's function "add_local_forward": ??? if (newfwd->listen_port < IPPORT_RESERVED && original_real_uid != 0) ??? ??? fatal("Privileged ports can only be forwarded by root."); The constant IPPORT_RESERVED is system wide and fixed at make time.

IRIX 6.5 has the basename() function in libgen. SYNOPSIS cc [flag ...] file ... -lgen [library ...] #include <libgen.h> char *basename (char *path); -- ayamura

Hi, in configure.in the patch for `setvbuf' is missing while in sftp-int.c the HAVE_SETVBUF define is used: Index: configure.in =================================================================== RCS file: /cvs/openssh_cvs/configure.in,v retrieving revision 1.286 diff -u -p -r1.286 configure.in --- configure.in 2001/05/17 03:32:51 1.286 +++ configure.in 2001/05/22 11:59:54 @@ -460,7 +460,7

When we were porting OpenSSH on SX, we had similar problem. And when we did #undef HAVE_B64_NTOP in config.h, we faced linking problem as b64_pton() multiply defined, in base64.c and in libc.a. So we modified configure to check both the functions b64_pton() and b64_ntop(). But we gave priority to native function if available. Following are the diffs of three files we changed 1. configure (line

Hi, I have a fedora27 system with a win10 guest trying to use photoshop 2015. I've adjusted the vram parameter for the guest to 512M with QXL, but photoshop still reports "3D features and some filters require 512MB vRAM and photoshop has detected less than that on your system." What is the proper way to adjust the vram value to provide at least 512MB vram? I've included my xml