Muttprint: Insecure temporary file usage

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-misc/muttprint	< 0.72d-r1	>= 0.72d-r1	All supported architectures

Related bugreports: #250554

An insecure temporary file usage in Muttprint allows for symlink attacks.

2. Impact Information

Muttprint formats the output of mail clients to a good-looking printing using LaTeX.

Dmitry E. Oboukhov reported an insecure usage of the temporary file "/tmp/muttprint.log" in the muttprint script.

A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application.

3. Resolution Information

There is no known workaround at this time.

All Muttprint users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-misc/muttprint-0.72d-r1"

4. References

Page updated March 23, 2009

Summary: This is a Gentoo Linux Security Advisory

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