Vulnerability identifier: #VU77578

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8390

CWE-ID: CWE-908

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 bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources when processing the [: and \ substrings in character classes. A remote attacker can pass specially crafted data to the application, trigger uninitialized usage of resources and bypass implemented security mechanisms.

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.