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[ GLSA 200803-24 ] PCRE: Buffer overflow
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GLSA
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PostPosted: Tue Mar 18, 2008 12:26 am    Post subject: [ GLSA 200803-24 ] PCRE: Buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: PCRE: Buffer overflow (GLSA 200803-24)
Severity: high
Exploitable: remote
Date: March 17, 2008
Bug(s): #209067, #209293
ID: 200803-24

Synopsis

A buffer overflow vulnerability has been discovered in PCRE, allowing for the execution of arbitrary code and Denial of Service.

Background

PCRE is a Perl-compatible regular expression library. GLib includes a copy of PCRE.

Affected Packages

Package: dev-libs/libpcre
Vulnerable: < 7.6-r1
Unaffected: >= 7.6-r1
Architectures: All supported architectures

Package: dev-libs/glib
Vulnerable: < 2.14.6
Unaffected: >= 2.14.6
Unaffected: < 2.14.0
Architectures: All supported architectures


Description

PCRE contains a buffer overflow vulnerability when processing a character class containing a very large number of characters with codepoints greater than 255.

Impact

A remote attacker could exploit this vulnerability by sending a specially crafted regular expression to an application making use of the PCRE library, which could possibly lead to the execution of arbitrary code or a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All PCRE users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.6-r1"
All GLib users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/glib-2.14.6"


References

CVE-2008-0674


Last edited by GLSA on Tue Mar 18, 2008 4:20 am; edited 1 time in total
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