#VU33291 Heap-based buffer overflow in PCRE - CVE-2014-8964

Vulnerability identifier: #VU33291

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-8964

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PCRE
Universal components / Libraries / Libraries used by multiple products

Vendor: PCRE

Description

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 PCRE 8.36 and earlier. A remote attacker can use a crafted regular expression 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.

Mitigation
Update to version 8.37.

Vulnerable software versions

PCRE: 8.00 - 8.36

---

External links
https://advisories.mageia.org/MGASA-2014-0534.html
https://bugs.exim.org/show_bug.cgi?id=1546
https://lists.fedoraproject.org/pipermail/package-announce/2014-December/145843.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-January/147474.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-January/147511.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-January/147516.html
https://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html
https://rhn.redhat.com/errata/RHSA-2015-0330.html
https://www.exim.org/viewvc/pcre?view=revision&revision=1513
https://www.mandriva.com/security/advisories?name=MDVSA-2015:002
https://www.mandriva.com/security/advisories?name=MDVSA-2015:137
https://www.openwall.com/lists/oss-security/2014/11/21/6
https://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
https://www.securityfocus.com/bid/71206
https://bugzilla.redhat.com/show_bug.cgi?id=1166147
https://security.gentoo.org/glsa/201607-02

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.