Out-of-Bounds Affecting pcre3 package, versions <2:8.38-3.1ubuntu0.1~esm2
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-UBUNTU1604-PCRE3-345435
- published20 Mar 2017
- disclosed20 Mar 2017
Introduced: 20 Mar 2017
CVE-2017-7186 (opens in a new tab)How 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