QGit: Insecure temporary file creation

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-util/qgit	< 1.5.7	>= 1.5.7	All supported architectures

Related bugreports: #190697

A vulnerability has been discovered in QGit allowing local users to overwrite arbitrary files and execute arbitrary code with another user's rights.

2. Impact Information

QGit is a graphical interface to git repositories that allows you to browse revisions history, view patch content and changed files.

Raphael Marichez discovered that the DataLoader::doStart() method creates temporary files in an insecure manner and executes them.

A local attacker could perform a symlink attack, possibly overwriting files or executing arbitrary code with the rights of the user running QGit.

3. Resolution Information

There is no known workaround at this time.

All QGit users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/qgit-1.5.7"

4. References

Updated October 07, 2007

Summary: This is a Gentoo Linux Security Advisory

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