Vulnerability identifier: #VU77577

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/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-2015-8394

CWE-ID: CWE-190

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 integer overflow when processing the (?() and (?(R) conditions. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PCRE: 8.00 - 8.37

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External links
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
http://www.openwall.com/lists/oss-security/2015/11/29/1
http://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
http://www.securityfocus.com/bid/82990
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
http://bto.bluecoat.com/security-advisory/sa128
http://security.gentoo.org/glsa/201607-02
http://security.netapp.com/advisory/ntap-20230216-0002/

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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.