[ GLSA 201708-08 ] bzip2

[GLSA]

Gentoo Linux Security Advisory

Title: bzip2: Denial of Service (GLSA 201708-08)
Severity: normal
Exploitable: remote
Date: 2017-08-21
Bug(s): #620466
ID: 201708-08

Synopsis

An use-after-free vulnerability has been found in bzip2 that could
allow remote attackers to cause a Denial of Service condition.


Background

bzip2 is a high-quality data compressor used extensively by Gentoo
Linux.


Affected Packages

Package: app-arch/bzip2
Vulnerable: < 1.0.6-r8
Unaffected: >= 1.0.6-r8
Architectures: All supported architectures


Description

A use-after-free flaw was found in bzip2recover, leading to a null
pointer dereference, or a write to a closed file descriptor. Please
review the CVE identifier referenced below for details.


Impact

A remote attacker could entice a user to process a specially crafted
bzip2 archive using bzip2recover, possibly resulting in a Denial of
Service condition.


Workaround

There is no known workaround at this time.

Resolution

All bzip2 users should upgrade to the latest version: