Out-of-Bounds Affecting pcre package, versions <7.8-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE310-PCRE-454564
- published27 Jun 2018
- disclosed21 Mar 2019
Introduced: 27 Jun 2018
CVE-2017-16231 (opens in a new tab)How to fix?
Upgrade Alpine:3.10 pcre to version 7.8-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pcre package and not the pcre package as distributed by Alpine.
See How to fix? for Alpine:3.10 relevant fixed versions and status.
In PCRE 8.41, after compiling, a pcretest load test PoC produces a crash overflow in the function match() in pcre_exec.c because of a self-recursive call. NOTE: third parties dispute the relevance of this report, noting that there are options that can be used to limit the amount of stack that is used
References
- https://bugs.exim.org/show_bug.cgi?id=2047
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16231
- https://security-tracker.debian.org/tracker/CVE-2017-16231
- http://packetstormsecurity.com/files/150897/PCRE-8.41-Buffer-Overflow.html
- http://www.openwall.com/lists/oss-security/2017/11/01/11
- http://www.openwall.com/lists/oss-security/2017/11/01/3
- http://www.openwall.com/lists/oss-security/2017/11/01/7
- http://www.openwall.com/lists/oss-security/2017/11/01/8
- http://seclists.org/fulldisclosure/2018/Dec/33
- http://www.securityfocus.com/bid/101688