libzip: Multiple vulnerabilities
Gentoo Linux Security Advisory
||GLSA 201203-23 / libzip
||March 29, 2012
||March 29, 2012: 1
All supported architectures
Multiple vulnerabilities have been found in libzip, the worst of
which might allow execution of arbitrary code.
libzip is a library for manipulating zip archives.
Two vulnerabilities have been found in the "_zip_readcdir()" function in
zip_open.c of libzip:
- An incorrect loop construct, which could cause a heap-based buffer
- An integer overflow, which may not restrict operations within the
memory buffer (CVE-2012-1163).
A remote attacker could entice a user to open a specially crafted ZIP
file, possibly resulting in execution of arbitrary code with the
privileges of the process, a Denial of Service condition, or information
There is no known workaround at this time.
All libzip users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libzip-0.10.1"