Vulnerability Details : CVE-2017-6004
The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.
Vulnerability category: Denial of service
Products affected by CVE-2017-6004
- cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6004
1.78%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6004
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-6004
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6004
-
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
-
http://www.securityfocus.com/bid/96295
PCRE 'compile_bracket_matchingpath()' Function Denial of Service Vulnerability
-
http://www.securitytracker.com/id/1037850
PCRE Logic Error in compile_bracket_matchingpath() Lets Remote Users Cause the Target Application to Crash - SecurityTracker
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https://vcs.pcre.org/pcre/code/trunk/pcre_jit_compile.c?r1=1676&r2=1680&view=patch
Patch
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https://bugs.exim.org/show_bug.cgi?id=2035
Bug 2035 – Segmentation fault in PHP7.1.1(bundled PCRE8.38)Issue Tracking;Third Party Advisory;VDB Entry
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https://security.gentoo.org/glsa/201706-11
PCRE library: Denial of Service (GLSA 201706-11) — Gentoo security
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https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
[GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 - Pony Mail
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https://access.redhat.com/errata/RHSA-2018:2486
RHSA-2018:2486 - Security Advisory - Red Hat Customer Portal
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