CVE-2015-5073: Buffer Overflow
First published: Tue Jun 30 2015(Updated: )
Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE before 8.38 allows remote attackers to cause a denial of service (crash) or obtain sensitive information from heap memory and possibly bypass the ASLR protection mechanism via a crafted regular expression with an excess closing parenthesis.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/pcre | <8.38 | 8.38 |
| IBM PowerKVM | =2.1 | |
| IBM PowerKVM | =3.1 | |
| PCRE | <=8.37 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2016-1025.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?revision=1609&view=markup
- http://vcs.pcre.org/pcre?view=revision&revision=1571
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
- http://www.openwall.com/lists/oss-security/2015/06/26/1
- http://www.openwall.com/lists/oss-security/2015/06/26/3
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/75430
- http://www.securitytracker.com/id/1033154
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bugs.exim.org/show_bug.cgi?id=1651
- https://security.gentoo.org/glsa/201607-02
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1237224
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1237225
- http://vcs.pcre.org/pcre?view=revision&revision=454
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1287654
- https://rhn.redhat.com/errata/RHSA-2016-1025.html
- https://rhn.redhat.com/errata/RHSA-2016-2750.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1237223
Frequently Asked Questions
What is the severity of CVE-2015-5073?
CVE-2015-5073 has a medium severity rating due to the potential for denial of service and information disclosure.
How do I fix CVE-2015-5073?
To fix CVE-2015-5073, update PCRE to version 8.38 or later.
What does CVE-2015-5073 affect?
CVE-2015-5073 affects the PCRE library versions prior to 8.38.
What type of vulnerability is CVE-2015-5073?
CVE-2015-5073 is a heap-based buffer overflow vulnerability.
Can CVE-2015-5073 bypass ASLR?
Yes, CVE-2015-5073 can potentially bypass the Address Space Layout Randomization (ASLR) protection mechanism.
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- version/pcre/8.37