USN-844-1: mimeTeX vulnerabilities

Ubuntu Security Notice USN-844-1

8th October, 2009

mimetex vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • mimetex

Details

Chris Evans discovered that mimeTeX incorrectly handled certain long tags.
An attacker could exploit this with a crafted mimeTeX expression and cause
a denial of service or possibly execute arbitrary code. (CVE-2009-1382)

Chris Evans discovered that mimeTeX contained certain directives that may
be unsuitable for handling untrusted user input. This update fixed the
issue by disabling the \input and \counter tags. (CVE-2009-2459)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 9.04:
mimetex 1.50-1ubuntu0.9.04.1
Ubuntu 8.10:
mimetex 1.50-1ubuntu0.8.10.1
Ubuntu 8.04 LTS:
mimetex 1.50-1ubuntu0.8.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

CVE-2009-1382, CVE-2009-2459