CVE-2016-1283: Buffer Overflow
First published: Sun Jan 03 2016(Updated: )
The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/pcre | <8.39 | 8.39 |
| PHP | <7.0.25 | 7.0.25 |
| pcre pcre | =8.38 | |
| PHP | >=5.6.0<5.6.32 | |
| PHP | >=7.0.0<7.0.25 | |
| PHP | >=7.1.0<7.1.11 | |
| Fedoraproject Fedora | =22 | |
| Fedoraproject Fedora | =23 | |
| Oracle Solaris SPARC | =11.3 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178193.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178955.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/79825
- http://www.securitytracker.com/id/1034555
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.343110
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bto.bluecoat.com/security-advisory/sa128
- https://bugs.exim.org/show_bug.cgi?id=1767
- https://security.gentoo.org/glsa/201607-02
- https://www.tenable.com/security/tns-2016-18
- https://www.tenable.com/security/tns-2017-14
- https://www.php.net/ChangeLog-7.php#7.0.25 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1295386
- http://vcs.pcre.org/pcre?view=revision&revision=1636
- https://bugzilla.redhat.com/show_bug.cgi?id=1295385
Frequently Asked Questions
What is the severity of CVE-2016-1283?
CVE-2016-1283 has been classified as a high severity vulnerability, impacting the stability of applications that rely on the affected versions of PCRE.
How do I fix CVE-2016-1283?
To fix CVE-2016-1283, upgrade PCRE to version 8.39 or later, or PHP to versions above 7.0.25.
What systems are affected by CVE-2016-1283?
CVE-2016-1283 affects PCRE version 8.38 and PHP versions up to 7.0.25, along with specific versions of Fedora and Oracle Solaris.
What type of attack is possible with CVE-2016-1283?
CVE-2016-1283 allows remote attackers to cause a denial of service through specially crafted regular expression patterns.
Is there a workaround for CVE-2016-1283 until I can update?
The best mitigation for CVE-2016-1283 is to avoid using vulnerable regular expressions if the software cannot be upgraded immediately.
- agent/type
- agent/severity
- agent/references
- agent/author
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-1283
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- collector/php-changelog
- source/PHP
- agent/software-canonical-lookup-request
- agent/weakness
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- package-manager/redhat
- vendor/php
- canonical/php
- vendor/pcre
- canonical/pcre pcre
- version/pcre pcre/8.38
- version/php/5.6.0
- version/php/7.0.0
- version/php/7.1.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/22
- version/fedoraproject fedora/23
- vendor/oracle
- canonical/oracle solaris sparc
- version/oracle solaris sparc/11.3