Debian Security Advisory

DLA-617-1 libarchive -- LTS security update

Date Reported:
10 Sep 2016
Affected Packages:
libarchive
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 784213.
In Mitre's CVE dictionary: CVE-2015-8915, CVE-2016-7166.
More information:

Several security vulnerabilities have been discovered in libarchive, a multi-format archive and compression library. An attacker could take advantage of these flaws to cause an out of bounds read or a denial of service against an application using the libarchive12 library using a carefully crafted input file.

  • CVE-2015-8915

    Paris Zoumpouloglou of Project Zero labs discovered a flaw in libarchive bsdtar. Using a crafted file bsdtar can perform an out-of-bounds memory read which will lead to a SEGFAULT.

  • CVE-2016-7166

    Alexander Cherepanov discovered a flaw in libarchive compression handling. Using a crafted gzip file, one can get libarchive to invoke an infinite chain of gzip compressors until all the memory has been exhausted or another resource limit kicks in.

For Debian 7 Wheezy, these problems have been fixed in version 3.0.4-3+wheezy3.

We recommend that you upgrade your libarchive packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS