Heap-based buffer overflow in PCRE - CVE-2015-5073

Vulnerability identifier: #VU32412

CSH Severity: High

CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2015-5073

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE before 8.38. A remote attacker can use a crafted regular expression with an excess closing parenthesis. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

PCRE
Amazon Linux AMI
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server from RHUI
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support
Fedora
pcre (Alpine package)
glib2
pcre
pcre (Red Hat package)

Update to version 8.38.

PCRE - update to 8.38
pcre (Alpine package) - update to 8.35-r2
glib2 - update to 2.36.3-5.26
pcre - update to 8.21-7.9
pcre (Red Hat package) - update to 8.32-15.el7_2.1
pcre - addressed in versions 8.35-12.fc21, 8.37-2.fc22

• http://rhn.redhat.com/errata/RHSA-2016-1025.html
• http://rhn.redhat.com/errata/RHSA-2016-2750.html
• http://vcs.pcre.org/pcre/code/trunk/ChangeLog?revision=1609&view=markup
• http://vcs.pcre.org/pcre?view=revision&revision=1571
• http://www.openwall.com/lists/oss-security/2015/06/26/1
• http://www.openwall.com/lists/oss-security/2015/06/26/3
• http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• http://www.securityfocus.com/bid/75430
• http://www.securitytracker.com/id/1033154
• http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
• https://access.redhat.com/errata/RHSA-2016:1132
• https://bugs.exim.org/show_bug.cgi?id=1651
• https://security.gentoo.org/glsa/201607-02

• Heap-based buffer overflow in PCRE
• Heap-based buffer overflow in pcre (Alpine package)
• Amazon Linux AMI update for pcre
• Amazon Linux AMI update for glib2
• Fedora 22 update for pcre
• Fedora 21 update for pcre
• Red Hat Enterprise Linux 7 update for pcre