#VU65555 Heap-based buffer overflow in PCRE and PCRE2 - CVE-2015-8381
Published: July 20, 2022
Vulnerability identifier: #VU65555
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2015-8381
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PCRE
PCRE2
PCRE
PCRE2
Software vendor:
PCRE
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 the compile_regex() function in pcre_compile.c in PCRE when handling related patterns with certain group references. A remote attacker can use a crafted regular expression to trigger a 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.
Remediation
Install update from vendor's website.
External links
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
- http://www.openwall.com/lists/oss-security/2015/11/29/1
- http://www.securityfocus.com/bid/76187
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bto.bluecoat.com/security-advisory/sa128
- https://bugs.exim.org/show_bug.cgi?id=1667
- https://bugs.exim.org/show_bug.cgi?id=1672
- https://security.gentoo.org/glsa/201607-02