CVE-2017-7186

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 4.97% Top 15%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.exim.org/show_bug.cgi?id=2052 third party advisory
https://security.gentoo.org/glsa/201710-09 vendor advisory
https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date patch
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date patch
https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date patch
http://www.securityfocus.com/bid/97030 vdb entry
https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/ third party advisory patch
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date patch
https://access.redhat.com/errata/RHSA-2018:2486 vendor advisory
https://security.gentoo.org/glsa/201710-25 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7186?
CVE-2017-7186 has been scored as a high severity vulnerability.
How to fix CVE-2017-7186?
To fix CVE-2017-7186, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7186 being actively exploited in the wild?
It is possible that CVE-2017-7186 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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