INFORMATION BULLETIN

S-336: PCRE3 Vulnerability

[Debian Security Advisory DSA-1602-1]

July 8, 2008 18:00 GMT


PROBLEM:	It was discovered that PCRE, the Perl-Compatible Regular Expression library, may encounter a heap overflow condition when compiling certain regular expressions involving in-pattern options and branches, potentially leading to arbitrary code execution.
PLATFORM:	Debian GNU/Linux 4.0 (etch)
DAMAGE:	Arbitrary code execution.
SOLUTION:	Upgrade to the appropriate version.

VULNERABILITY ASSESSMENT:	The risk is MEDIUM. May encounter a heap overflow condition when compiling certain regular expressions involving in-pattern options and branches, potentially leading the arbitrary code execution.

CVSS 2 BASE SCORE: TEMPORAL SCORE: VECTOR:	7.5 5.9 (AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C)

LINKS:
CIAC BULLETIN:	http://www.ciac.org/ciac/bulletins/s-336.shtml
ORIGINAL BULLETIN:	http://www.debian.org/security/2008/dsa-1602
CVE:	CVE-2008-2371

[***** Start Debian Security Advisory DSA-1602-1 *****]

Debian Security Advisory

DSA-1602-1 pcre3 -- buffer overflow

Date Reported:

05 Jul 2008

Affected Packages:

pcre3

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2008-2371.

More information:

Tavis Ormandy discovered that PCRE, the Perl-Compatible Regular Expression library, may encounter a heap overflow condition when compiling certain regular expressions involving in-pattern options and branches, potentially leading to arbitrary code execution.

For the stable distribution (etch), this problem has been fixed in version 6.7+7.4-4.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your pcre3 packages.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:: http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4-4.dsc; http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4-4.diff.gz; http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4.orig.tar.gz
Alpha:: http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_alpha.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_alpha.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_alpha.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_amd64.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_amd64.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_amd64.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_arm.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_arm.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_arm.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_arm.deb
HP Precision:: http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_hppa.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_hppa.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_hppa.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_i386.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_i386.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_i386.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_ia64.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_ia64.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_ia64.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_mips.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_mips.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_mips.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_mips.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_mipsel.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_mipsel.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_mipsel.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_powerpc.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_powerpc.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_powerpc.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_s390.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_s390.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_s390.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-4_sparc.deb; http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-4_sparc.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-4_sparc.deb; http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-4_sparc.deb

MD5 checksums of the listed files are available in the original advisory.


[***** End Debian Security Advisory DSA-1602-1 *****]

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