Heap-based Buffer Overflow Affecting pcre2-utf16 package, versions *
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-RHEL7-PCRE2UTF16-1374243
- published26 Jul 2021
- disclosed21 Mar 2017
Introduced: 21 Mar 2017
CVE-2017-8786 (opens in a new tab)How to fix?
There is no fixed version for RHEL:7 pcre2-utf16.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pcre2-utf16 package and not the pcre2-utf16 package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression.
References
- https://access.redhat.com/security/cve/CVE-2017-8786
- https://security.gentoo.org/glsa/201710-09
- https://blogs.gentoo.org/ago/2017/04/29/libpcre-heap-based-buffer-overflow-write-in-pcre2test-c/
- https://bugs.exim.org/show_bug.cgi?id=2079
- https://vcs.pcre.org/pcre2?view=revision&revision=696
- https://vcs.pcre.org/pcre2?view=revision&revision=697