USN-772-1: MPFR vulnerability

Ubuntu Security Notice USN-772-1

7th May, 2009

mpfr vulnerability

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

  • Ubuntu 9.04

Software description

  • mpfr


It was discovered that MPFR improperly handled string lengths in its print
routines. If a user or automated system were tricked into processing
specially crafted data with applications linked against MPFR, an attacker
could cause a denial of service or execute arbitrary code with privileges
of the user invoking the program.

Update instructions

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

Ubuntu 9.04:
libmpfr1ldbl 2.4.0-1ubuntu3.1
lib64mpfr1 2.4.0-1ubuntu3.1

To update your system, please follow these instructions:

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