CVE-2016-3191: Buffer Overflow
First published: Wed Feb 24 2016(Updated: )
The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/pcre | <8.39 | 8.39 |
| redhat/pcre2 | <10.22 | 10.22 |
| pcre pcre | =8.00 | |
| pcre pcre | =8.01 | |
| pcre pcre | =8.02 | |
| pcre pcre | =8.10 | |
| pcre pcre | =8.11 | |
| pcre pcre | =8.12 | |
| pcre pcre | =8.13 | |
| pcre pcre | =8.20 | |
| pcre pcre | =8.21 | |
| pcre pcre | =8.30 | |
| pcre pcre | =8.31 | |
| pcre pcre | =8.32 | |
| pcre pcre | =8.33 | |
| pcre pcre | =8.34 | |
| pcre pcre | =8.35 | |
| pcre pcre | =8.36 | |
| pcre pcre | =8.37 | |
| pcre pcre | =8.38 | |
| PCRE2 (Perl Compatible Regular Expressions) | <=10.21 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2016-1025.html
- http://vcs.pcre.org/pcre2?view=revision&revision=489
- http://vcs.pcre.org/pcre?view=revision&revision=1631
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/84810
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bto.bluecoat.com/security-advisory/sa128
- https://bugs.debian.org/815920
- https://bugs.debian.org/815921
- https://bugs.exim.org/show_bug.cgi?id=1791
- https://bugzilla.redhat.com/show_bug.cgi?id=1311503
- https://www.tenable.com/security/tns-2016-18
- https://rhn.redhat.com/errata/RHSA-2016-1025.html
Frequently Asked Questions
What is the severity of CVE-2016-3191?
CVE-2016-3191 has a critical severity level, allowing for remote code execution or denial of service attacks.
How do I fix CVE-2016-3191?
To fix CVE-2016-3191, update to PCRE version 8.39 or PCRE2 version 10.22 or later.
What software is affected by CVE-2016-3191?
CVE-2016-3191 affects PCRE versions prior to 8.39 and PCRE2 versions prior to 10.22.
Can CVE-2016-3191 be exploited remotely?
Yes, CVE-2016-3191 can be exploited remotely through specially crafted patterns.
What vulnerabilities does CVE-2016-3191 relate to?
CVE-2016-3191 relates to vulnerabilities in pattern handling, specifically involving the (*ACCEPT) substring.
- agent/type
- agent/first-publish-date
- agent/severity
- agent/references
- agent/author
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-3191
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/weakness
- agent/softwarecombine
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/redhat
- vendor/pcre
- canonical/pcre pcre
- version/pcre pcre/8.00
- version/pcre pcre/8.01
- version/pcre pcre/8.02
- version/pcre pcre/8.10
- version/pcre pcre/8.11
- version/pcre pcre/8.12
- version/pcre pcre/8.13
- version/pcre pcre/8.20
- version/pcre pcre/8.21
- version/pcre pcre/8.30
- version/pcre pcre/8.31
- version/pcre pcre/8.32
- version/pcre pcre/8.33
- version/pcre pcre/8.34
- version/pcre pcre/8.35
- version/pcre pcre/8.36
- version/pcre pcre/8.37
- version/pcre pcre/8.38
- canonical/pcre2 (perl compatible regular expressions)
- version/pcre2 (perl compatible regular expressions)/10.21