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Alerts This Week
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Red Hat Enterprise Linux 7: RHSA-2016-1025-01 Critical PCRE Buffer Overflow

red hat
Calendar Grey May 11, 2016
Scroller Redhat
Important PCRE upgrade released for Red Hat Enterprise Linux, resolving a variety of vulnerabilities and improving software safety.
An update for pcre is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

PCRE is a Perl-compatible regular expression library.
Security Fix(es):
* Multiple flaws were found in the way PCRE handled malformed regular expressions. An attacker able to make an application using PCRE process a specially crafted regular expression could use these flaws to cause the application to crash or, possibly, execute arbitrary code. (CVE-2015-8385, CVE-2016-3191, CVE-2015-2328, CVE-2015-3217, CVE-2015-5073, CVE-2015-8388, CVE-2015-8391, CVE-2015-8386)

Topics%20covered

Topics Covered

security advisory buffer overflow red hat critical security fix important pcre

References

https://access.redhat.com/security/cve/CVE-2015-2328 https://access.redhat.com/security/cve/CVE-2015-3217 https://access.redhat.com/security/cve/CVE-2015-5073 https://access.redhat.com/security/cve/CVE-2015-8385 https://access.redhat.com/security/cve/CVE-2015-8386 https://access.redhat.com/security/cve/CVE-2015-8388 https://access.redhat.com/security/cve/CVE-2015-8391 https://access.redhat.com/security/cve/CVE-2016-3191 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: pcre-8.32-15.el7_2.1.src.rpm
x86_64: pcre-8.32-15.el7_2.1.i686.rpm pcre-8.32-15.el7_2.1.x86_64.rpm pcre-debuginfo-8.32-15.el7_2.1.i686.rpm pcre-debuginfo-8.32-15.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: pcre-debuginfo-8.32-15.el7_2.1.i686.rpm pcre-debuginfo-8.32-15.el7_2.1.x86_64.rpm pcre-devel-8.32-15.el7_2.1.i686.rpm pcre-devel-8.32-15.el7_2.1.x86_64.rpm pcre-static-8.32-15.el7_2.1.i686.rpm pcre-static-8.32-15.el7_2.1.x86_64.rpm pcre-tools-8.32-15.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: pcre-8.32-15.el7_2.1.src.rpm
x86_64: pcre-8.32-15.el7_2.1.i686.rpm pcre-8.32-15.el7_2.1.x86_64.rpm pcre-debuginfo-8.32-15.el7_2.1.i686.rpm pcre-debuginfo-8.32-15.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: pcre-debuginfo-8.32-15.el7_2.1.i686.rpm pcre-debuginfo-8.32-15.el7_2.1.x86_64.rpm pcre-devel-8.32-15.el7_2.1.i686.rpm pcre-devel-8.32-15.el7_2.1.x86_64.rpm pcre-static-8.32-15.el7_2.1.i686.rpm pcre-static-8.32-15.el7_2.1.x86_64.rpm pcre-tools-8.32-15.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: pcre-8.32-15.el7_2.1.src.rpm
ppc64: pcre-8.32-15.el7_2.1.ppc.rpm pcre-8.32-15.el7_2.1.ppc64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:1025-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:1025.html
Issue date: 2016-05-11

Topic

An update for pcre is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow red hat critical security fix important pcre

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1228283 - CVE-2015-3217 pcre: stack overflow caused by mishandled group empty match (8.38/11)

1237223 - CVE-2015-5073 CVE-2015-8388 pcre: buffer overflow for forward reference within backward assertion with excess closing parenthesis (8.38/18)

1285399 - CVE-2015-2328 pcre: infinite recursion compiling pattern with recursive reference in a group with indefinite repeat (8.36/20)

1287629 - CVE-2015-8385 pcre: buffer overflow caused by named forward reference to duplicate group number (8.38/30)

1287636 - CVE-2015-8386 pcre: Buffer overflow caused by lookbehind assertion (8.38/6)

1287671 - CVE-2015-8391 pcre: inefficient posix character class syntax check (8.38/16)

1311503 - CVE-2016-3191 pcre: workspace overflow for (*ACCEPT) with deeply nested parentheses (8.39/13, 10.22/12)

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