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Texinfo: Buffer overflow


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200611-16 / texinfo
Release Date November 21, 2006
Latest Revision November 21, 2006: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
sys-apps/texinfo < 4.8-r5 >= 4.8-r5 All supported architectures

Related bugreports: #154316


Texinfo is vulnerable to a buffer overflow that could lead to the execution of arbitrary code.

2.  Impact Information


Texinfo is the official documentation system of the GNU project.


Miloslav Trmac from Red Hat discovered a buffer overflow in the "readline()" function of texindex.c. The "readline()" function is called by the texi2dvi and texindex commands.


By enticing a user to open a specially crafted Texinfo file, an attacker could execute arbitrary code with the rights of the user running Texinfo.

3.  Resolution Information


There is no known workaround at this time.


All Texinfo users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/texinfo-4.8-r5"

4.  References


Page updated November 21, 2006

Summary: This is a Gentoo Linux Security Advisory

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