Stefan Goebel discovered that the Debian version of trac-git, the Git add-on for the Trac issue tracking system, contains a flaw which enables attackers to execute code on the web server running trac-git by sending crafted HTTP queries.
The old stable distribution (etch) does not contain a trac-git package.
For the stable distribution (lenny), this problem has been fixed in version 0.0.20080710-3+lenny1.
For the unstable distribution (sid) and the testing distribution (squeeze), this problem has been fixed in version 0.0.20090320-1.
We recommend that you upgrade your trac-git package.
MD5 checksums of the listed files are available in the original advisory.