id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
9598	git-2.14.1	ken@…	ken@…	"From the release announcement copied to lkml:
{{{

}}}
The latest maintenance release Git v2.14.1 is now available at the
usual places, together with releases for older maintenance track for
the same issue: v2.7.6, v2.8.6, v2.9.5, v2.10.4, v2.11.3, v2.12.4,
and v2.13.5.

These contain a security fix for CVE-2017-1000117, and are released
in coordination with Subversion and Mercurial that share a similar
issue.  CVE-2017-9800 and CVE-2017-1000116 are assigned to these
systems, respectively, for issues similar to it that are now
addressed in their part of this coordinated release.

[...]
A malicious third-party can give a crafted ""ssh://..."" URL to an
unsuspecting victim, and an attempt to visit the URL can result in
any program that exists on the victim's machine being executed.
Such a URL could be placed in the .gitmodules file of a malicious
project, and an unsuspecting victim could be tricked into running
""git clone --recurse-submodules"" to trigger the vulnerability.

Credits to find and fix the issue go to Brian Neel at GitLab, Joern
Schneeweisz of Recurity Labs and Jeff King at GitHub.

 * A ""ssh://..."" URL can result in a ""ssh"" command line with a
   hostname that begins with a dash ""-"", which would cause the ""ssh""
   command to instead (mis)treat it as an option.  This is now
   prevented by forbidding such a hostname (which should not impact
   any real-world usage).

 * Similarly, when GIT_PROXY_COMMAND is configured, the command is
   run with host and port that are parsed out from ""ssh://..."" URL;
   a poorly written GIT_PROXY_COMMAND could be tricked into treating
   a string that begins with a dash ""-"" as an option.  This is now
   prevented by forbidding such a hostname and port number (again,
   which should not impact any real-world usage).

 * In the same spirit, a repository name that begins with a dash ""-""
   is also forbidden now.

"	enhancement	closed	high	8.1	BOOK	SVN	medium	fixed