Out-of-Bounds Affecting pcre3 package, versions <2:8.38-3.1ubuntu0.1~esm2
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
4.25% (93rd
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1604-PCRE3-345435
- published 20 Mar 2017
- disclosed 20 Mar 2017
Introduced: 20 Mar 2017
CVE-2017-7186 Open this link in a new tabHow to fix?
Upgrade Ubuntu:16.04 pcre3 to version 2:8.38-3.1ubuntu0.1~esm2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 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
- http://people.ubuntu.com/~ubuntu-security/cve/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-tracker.debian.org/tracker/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