RAR, UnRAR: Multiple vulnerabilities — GLSA 201709-24

Multiple vulnerabilities have been found in RAR and UnRAR, the worst of which may allow attackers to execute arbitrary code.

Affected Packages

app-arch/rar on all architectures
Affected versions < 5.5.0_p20170811
Unaffected versions >= 5.5.0_p20170811
app-arch/unrar on all architectures
Affected versions < 5.5.7
Unaffected versions >= 5.5.7

Background

RAR and UnRAR provide command line interfaces for compressing and decompressing RAR files.

Description

Multiple vulnerabilities have been discovered in RAR and UnRAR. Please review the referenced CVE identifiers for details.

Impact

A remote attacker, by enticing a user to open a specially crafted RAR, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All RAR users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/rar-5.5.0_p20170811"
 

All UnRAR users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/unrar-5.5.7"
 

References

Release Date
September 25, 2017

Latest Revision
September 25, 2017: 1

Severity
normal

Exploitable
remote

Bugzilla entries