Improper Input Validation Affecting httpd 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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Start learning- Snyk IDSNYK-RHEL7-HTTPD-3519837
- published26 Jul 2021
- disclosed23 Feb 2017
Introduced: 23 Feb 2017
CVE-2017-7186 (opens in a new tab)How to fix?
There is no fixed version for RHEL:7 httpd.
NVD Description
Note: Versions mentioned in the description apply only to the upstream httpd package and not the httpd package as distributed by RHEL.
See How to fix? for RHEL:7 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://www.securityfocus.com/bid/97030
- 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://access.redhat.com/security/cve/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