Heap-based buffer overflow in PCRE

1) Heap-based buffer overflow

EUVDB-ID: #VU32411

Risk: High

CVSSv3.1: 8.5 [AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-3210

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

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 8.34 through 8.37 and PCRE2 10.10. 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 8.38.

Vulnerable software versions

PCRE: 8.34 - 8.37

External links

http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.openwall.com/lists/oss-security/2015/06/01/7
http://www.openwall.com/lists/oss-security/2015/12/02/11
http://www.securityfocus.com/bid/74934
http://access.redhat.com/errata/RHSA-2016:1132
http://bugs.exim.org/show_bug.cgi?id=1636

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.