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Debian Security Advisory DSA 3984-1 (git - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
joernchen discovered that the git-cvsserver subcommand of Git, a distributed version control system, suffers from a shell command injection vulnerability due to unsafe use of the Perl backtick operator. The git-cvsserver subcommand is reachable from the git-shell subcommand even if CVS support has not been configured (however, the git-cvs package needs to be installed). In addition to fixing the actual bug, this update removes the cvsserver subcommand from git-shell by default. Refer to the updated documentation for instructions how to re-enable in case this CVS functionality is still needed.
Affected Software
Affected Software
git on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), this problem has been fixed in version 1:2.1.4-2.1+deb8u5. For the stable distribution (stretch), this problem has been fixed in version 1:2.11.0-3+deb9u2. For the unstable distribution (sid), this problem has been fixed in version 1:2.14.2-1. We recommend that you upgrade your git packages.