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[ GLSA 200702-04 ] RAR, UnRAR: Buffer overflow
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GLSA
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Joined: 12 May 2004
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PostPosted: Wed Feb 14, 2007 1:26 am    Post subject: [ GLSA 200702-04 ] RAR, UnRAR: Buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: RAR, UnRAR: Buffer overflow (GLSA 200702-04)
Severity: normal
Exploitable: remote
Date: February 13, 2007
Updated: February 14, 2007
Bug(s): #166440
ID: 200702-04

Synopsis

RAR and UnRAR contain a buffer overflow allowing the execution of arbitrary code.

Background

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

Affected Packages

Package: app-arch/rar
Vulnerable: < 3.7.0_beta1
Unaffected: >= 3.7.0_beta1
Architectures: All supported architectures

Package: app-arch/unrar
Vulnerable: < 3.7.3
Unaffected: >= 3.7.3
Architectures: All supported architectures


Description

RAR and UnRAR contain a boundary error when processing password-protected archives that could result in a stack-based buffer overflow.

Impact

A remote attacker could entice a user to process a specially crafted password-protected archive and execute arbitrary code with the rights of the user uncompressing the archive.

Workaround

There is no known workaround at this time.

Resolution

All UnRAR users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/unrar-3.7.3"
All RAR users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/rar-3.7.0_beta1"


References

CVE-2007-0855


Last edited by GLSA on Thu Feb 15, 2007 4:18 am; edited 1 time in total
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