Denial of service in PCRE



Published: 2017-07-11 | Updated: 2020-08-17
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-11164
CWE-ID CWE-674
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		PCRE
Universal components / Libraries / Libraries used by multiple products

Vendor PCRE

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 17.08.2020
Updated list of vulnerable versions, added link to original patch.

1) Uncontrolled Recursion

EUVDB-ID: #VU33138

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-11164

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion when processing regular expressions in the match function in pcre_exec.c. A remote attacker can perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PCRE: 6.0 - 8.41

External links

http://openwall.com/lists/oss-security/2017/07/11/3
http://www.securityfocus.com/bid/99575
http://vcs.pcre.org/pcre/code/trunk/pcre_exec.c?r1=1725&r2=1724&pathrev=1725


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.



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