zlib: Multiple vulnerabilities — GLSA 202210-42

A buffer overflow in zlib might allow an attacker to cause remote code execution.

Affected packages

sys-libs/zlib on all architectures
Affected versions < 1.2.12-r3
Unaffected versions >= 1.2.12-r3

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

Maliciously crafted input handled by zlib may result in remote code execution.

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-1.2.12-r3"
 

References

Release date
October 31, 2022

Latest revision
October 31, 2022: 1

Severity
normal

Exploitable
remote

Bugzilla entries