zlib: Multiple vulnerabilities — GLSA 201701-56

Multiple vulnerabilities have been found in zlib, the worst of which could allow attackers to cause a Denial of Service condition.

Affected Packages

sys-libs/zlib on all architectures
Affected versions < 1.2.9
Unaffected versions >= 1.2.9

Background

zlib is a widely used free and patent unencumbered data compression library.

Description

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

Impact

An attacker could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All zlib users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.9"
 

References

Release Date
January 23, 2017

Latest Revision
January 23, 2017: 1

Severity
normal

Exploitable
local, remote

Bugzilla entries