USN-844-1: mimeTeX vulnerabilities
8 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 versions:
- 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.