Out-of-Bounds Affecting pcre2 package, versions <10.22-3
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-DEBIAN9-PCRE2-326067
- published20 Mar 2017
- disclosed20 Mar 2017
Introduced: 20 Mar 2017
CVE-2017-7186 (opens in a new tab)How to fix?
Upgrade Debian:9 pcre2 to version 10.22-3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pcre2 package and not the pcre2 package as distributed by Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
References
- https://security-tracker.debian.org/tracker/CVE-2017-7186
- https://bugs.exim.org/show_bug.cgi?id=2052
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
- https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date
- https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7186
- https://security.gentoo.org/glsa/201710-09
- https://security.gentoo.org/glsa/201710-25
- https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/
- https://access.redhat.com/errata/RHSA-2018:2486
- http://www.securityfocus.com/bid/97030
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7186