libarchive: Multiple vulnerabilities — GLSA 201701-03

Multiple vulnerabilities have been found in libarchive, the worst of which allows for the remote execution of arbitrary code.

Affected Packages

app-arch/libarchive on all architectures
Affected versions < 3.2.2
Unaffected versions >= 3.2.2

Background

libarchive is a library for manipulating different streaming archive formats, including certain tar variants, several cpio formats, and both BSD and GNU ar variants.

Description

Multiple vulnerabilities have been discovered in libarchive. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could entice a user to open a specially crafted archive file possibly resulting in the execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libarchive users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/libarchive-3.2.2"
 

References

Release Date
January 01, 2017

Latest Revision
January 01, 2017: 1

Severity
normal

Exploitable
remote

Bugzilla entries