#VU77577 Integer overflow in PCRE - CVE-2015-8394

Vulnerability identifier: #VU77577

Vulnerability risk: High

CVSSv4.0: 8.1 [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-2015-8394

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