PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

BID:30087

Info

PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

Bugtraq ID: 30087
Class: Design Error
CVE: CVE-2008-2371
Remote: Yes
Local: No
Published: Jul 01 2008 12:00AM
Updated: Apr 13 2015 09:23PM
Credit: Tavis Ormandy
Vulnerable: Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 7.10 sparc
Ubuntu Ubuntu Linux 7.10 powerpc
Ubuntu Ubuntu Linux 7.10 lpia
Ubuntu Ubuntu Linux 7.10 i386
Ubuntu Ubuntu Linux 7.10 amd64
Ubuntu Ubuntu Linux 7.04 sparc
Ubuntu Ubuntu Linux 7.04 powerpc
Ubuntu Ubuntu Linux 7.04 i386
Ubuntu Ubuntu Linux 7.04 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Slackware Linux 12.1
Slackware Linux 12.0
Slackware Linux -current
S.u.S.E. openSUSE 10.3
rPath rPath Linux 2
rPath rPath Linux 1
rPath Appliance Platform Linux Service 2
rPath Appliance Platform Linux Service 1
PCRE PCRE 7.7
Pardus Linux 2008 0
Pardus Linux 2007 0
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
Mandriva Linux Mandrake 2007.1 x86_64
Mandriva Linux Mandrake 2007.1
HP HP-UX B.11.31
HP HP-UX B.11.23
HP HP-UX B.11.11
GNOME glib 2.16.3
Gentoo Linux
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Apple Mac OS X Server 10.5.6
Apple Mac OS X Server 10.5.5
Apple Mac OS X Server 10.5.4
Apple Mac OS X Server 10.5.3
Apple Mac OS X Server 10.5.2
Apple Mac OS X Server 10.5.1
Apple Mac OS X Server 10.4.11
Apple Mac OS X Server 10.4.10
Apple Mac OS X Server 10.4.9
Apple Mac OS X Server 10.4.8
Apple Mac OS X Server 10.4.7
Apple Mac OS X Server 10.4.6
Apple Mac OS X Server 10.4.5
Apple Mac OS X Server 10.4.4
Apple Mac OS X Server 10.4.3
Apple Mac OS X Server 10.4.2
Apple Mac OS X Server 10.4.1
Apple Mac OS X Server 10.4
Apple Mac OS X Server 10.5
Apple Mac OS X 10.5.6
Apple Mac OS X 10.5.5
Apple Mac OS X 10.5.4
Apple Mac OS X 10.5.3
Apple Mac OS X 10.5.2
Apple Mac OS X 10.5.1
Apple Mac OS X 10.4.11
Apple Mac OS X 10.4.10
Apple Mac OS X 10.4.9
Apple Mac OS X 10.4.8
Apple Mac OS X 10.4.7
Apple Mac OS X 10.4.6
Apple Mac OS X 10.4.5
Apple Mac OS X 10.4.4
Apple Mac OS X 10.4.3
Apple Mac OS X 10.4.2
Apple Mac OS X 10.4.1
Apple Mac OS X 10.4
Apple Mac OS X 10.5
Not Vulnerable: GNOME glib 2.16.4
Apple Mac OS X Server 10.5.7
Apple Mac OS X 10.5.7

Discussion

PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

PCRE is prone to a heap-based buffer-overflow vulnerability because the library fails to properly handle user-supplied input before copying data to an internal memory buffer.

The impact of successful exploits of this vulnerability depends on the application and the privileges of the user running the vulnerable library. A successful attack may ultimately permit an attacker to control the contents of critical memory control structures and write arbitrary data to arbitrary memory locations. This may allow the attacker to execute arbitrary code in the context of the application using the vulnerable library.

Versions up to and including PCRE 7.7 are vulnerable.

Exploit / POC

PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references for more information.


Ubuntu Ubuntu Linux 9.10 sparc

Ubuntu Ubuntu Linux 9.10 powerpc

Ubuntu Ubuntu Linux 9.10 lpia

Apple Mac OS X Server 10.5

Ubuntu Ubuntu Linux 9.10 i386

Ubuntu Ubuntu Linux 9.10 amd64

Apple Mac OS X 10.4.11

Apple Mac OS X Server 10.4.11

Apple Mac OS X 10.5.1

Apple Mac OS X Server 10.5.1

Apple Mac OS X 10.5.2

Apple Mac OS X Server 10.5.2

Apple Mac OS X 10.5.3

Apple Mac OS X Server 10.5.3

Apple Mac OS X 10.5.4

Apple Mac OS X Server 10.5.4

Apple Mac OS X Server 10.5.5

Apple Mac OS X 10.5.6

Apple Mac OS X Server 10.5.6

References

PCRE Regular Expression Heap Based Buffer Overflow Vulnerability

References:
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