Bug 1285399 (CVE-2015-2328) - CVE-2015-2328 pcre: infinite recursion compiling pattern with recursive reference in a group with indefinite repeat (8.36/20)
Summary: CVE-2015-2328 pcre: infinite recursion compiling pattern with recursive refer...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-2328
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1128577 1285401 1330508 1330509
Blocks: 1285420
TreeView+ depends on / blocked
 
Reported: 2015-11-25 14:23 UTC by Adam Mariš
Modified: 2019-09-29 13:40 UTC (History)
36 users (show)

Fixed In Version: pcre 8.36
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-05-11 13:46:33 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1025 0 normal SHIPPED_LIVE Important: pcre security update 2016-05-11 17:07:01 UTC
Red Hat Product Errata RHSA-2016:2750 0 normal SHIPPED_LIVE Moderate: rh-php56 security, bug fix, and enhancement update 2016-11-15 16:40:02 UTC

Description Adam Mariš 2015-11-25 14:23:41 UTC 
A stack-based buffer overflow vulnerability was found in compile_regex(), triggered via crafted regular expression.

Upstream bug (contains reproducer):

https://bugs.exim.org/show_bug.cgi?id=1515

Upstream patch:

http://vcs.pcre.org/pcre?view=revision&revision=1498

CVE request:

http://www.openwall.com/lists/oss-security/2015/05/31/4
Comment 1 Adam Mariš 2015-11-25 14:25:21 UTC 
Created pcre tracking bugs for this issue:

Affects: fedora-all [bug 1285401]
Comment 2 Petr Pisar 2015-11-25 16:11:20 UTC 
Upstream fixed it in 8.36. Simple reproducer is crash when compiling /((?(R)a|(?1)))*/ expression.
Comment 3 Petr Pisar 2015-11-25 16:17:40 UTC 
This has already been fixed as bug #1128577 in Fedora. No supported Fedora is affected since 2014-08-11.
Comment 4 Tomas Hoger 2016-02-17 21:45:08 UTC 
This is not a stack based buffer overflow, but stack overflow, caused by infinite recursion.  The impact of this issue is limited to crash.

The problem was introduced upstream between version 8.12 and 8.13.
Comment 6 errata-xmlrpc 2016-05-11 13:07:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1025 https://rhn.redhat.com/errata/RHSA-2016-1025.html
Comment 7 errata-xmlrpc 2016-11-15 11:47:11 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2016:2750 https://rhn.redhat.com/errata/RHSA-2016-2750.html
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