SUSE SLED12 / SLES12 Security Update : pcre (SUSE-SU-2016:3161-1)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

This update for pcre to version 8.39 (bsc#972127) fixes several
issues. If you use pcre extensively please be aware that this is an
update to a new version. Please make sure that your software works
with the updated version. This version fixes a number of
vulnerabilities that affect pcre and applications using the libary
when accepting untrusted input as regular expressions or as part
thereof. Remote attackers could have caused the application to crash,
disclose information or potentially execute arbitrary code. These
security issues were fixed :

- CVE-2014-8964: Heap-based buffer overflow in PCRE
allowed remote attackers to cause a denial of service
(crash) or have other unspecified impact via a crafted
regular expression, related to an assertion that allows
zero repeats (bsc#906574).

- CVE-2015-2325: Heap buffer overflow in compile_branch()
(bsc#924960).

- CVE-2015-3210: Heap buffer overflow in pcre_compile2() /
compile_regex() (bsc#933288)

- CVE-2015-3217: PCRE Library Call Stack Overflow
Vulnerability in match() (bsc#933878).

- CVE-2015-5073: Library Heap Overflow Vulnerability in
find_fixedlength() (bsc#936227).

- bsc#942865: heap overflow in compile_regex()

- CVE-2015-8380: The pcre_exec function in pcre_exec.c
mishandled a // pattern with a \01 string, which allowed
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 (bsc#957566).

- CVE-2015-2327: PCRE mishandled certain patterns with
internal recursive back references, which allowed remote
attackers to cause a denial of service (segmentation
fault) or possibly have unspecified other impact via a
crafted regular expression, as demonstrated by a
JavaScript RegExp object encountered by Konqueror
(bsc#957567).

- bsc#957598: Various security issues

- CVE-2015-8381: Heap Overflow in compile_regex()
(bsc#957598).

- CVE-2015-8382: Regular Expression Uninitialized Pointer
Information Disclosure Vulnerability
(ZDI-CAN-2547)(bsc#957598).

- CVE-2015-8383: Buffer overflow caused by repeated
conditional group(bsc#957598).

- CVE-2015-8384: Buffer overflow caused by recursive back
reference by name within certain group(bsc#957598).

- CVE-2015-8385: Buffer overflow caused by forward
reference by name to certain group(bsc#957598).

- CVE-2015-8386: Buffer overflow caused by lookbehind
assertion(bsc#957598).

- CVE-2015-8387: Integer overflow in subroutine
calls(bsc#957598).

- CVE-2015-8388: Buffer overflow caused by certain
patterns with an unmatched closing
parenthesis(bsc#957598).

- CVE-2015-8389: Infinite recursion in JIT compiler when
processing certain patterns(bsc#957598).

- CVE-2015-8390: Reading from uninitialized memory when
processing certain patterns(bsc#957598).

- CVE-2015-8391: Some pathological patterns causes
pcre_compile() to run for a very long time(bsc#957598).

- CVE-2015-8392: Buffer overflow caused by certain
patterns with duplicated named groups(bsc#957598).

- CVE-2015-8393: Information leak when running pcgrep -q
on crafted binary(bsc#957598).

- CVE-2015-8394: Integer overflow caused by missing check
for certain conditions(bsc#957598).

- CVE-2015-8395: Buffer overflow caused by certain
references(bsc#957598).

- CVE-2015-2328: PCRE mishandled the /((?(R)a|(?1)))+/
pattern and related patterns with certain recursion,
which allowed remote attackers to cause a denial of
service (segmentation fault) or possibly have
unspecified other impact via a crafted regular
expression (bsc#957600).

- CVE-2016-1283: The pcre_compile2 function in
pcre_compile.c in PCRE mishandled certain patterns with
named subgroups, which allowed remote attackers to cause
a denial of service (heap-based buffer overflow) or
possibly have unspecified other impact via a crafted
regular expression (bsc#960837).

- CVE-2016-3191: The compile_branch function in
pcre_compile.c in pcre2_compile.c mishandled patterns
containing an (*ACCEPT) substring in conjunction with
nested parentheses, which allowed remote attackers to
execute arbitrary code or cause a denial of service
(stack-based buffer overflow) via a crafted regular
expression (bsc#971741). These non-security issues were
fixed :

- JIT compiler improvements

- performance improvements

- The Unicode data tables have been updated to Unicode
7.0.0.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/906574
https://bugzilla.suse.com/924960
https://bugzilla.suse.com/933288
https://bugzilla.suse.com/933878
https://bugzilla.suse.com/936227
https://bugzilla.suse.com/942865
https://bugzilla.suse.com/957566
https://bugzilla.suse.com/957567
https://bugzilla.suse.com/957598
https://bugzilla.suse.com/957600
https://bugzilla.suse.com/960837
https://bugzilla.suse.com/971741
https://bugzilla.suse.com/972127
https://www.suse.com/security/cve/CVE-2014-8964.html
https://www.suse.com/security/cve/CVE-2015-2325.html
https://www.suse.com/security/cve/CVE-2015-2327.html
https://www.suse.com/security/cve/CVE-2015-2328.html
https://www.suse.com/security/cve/CVE-2015-3210.html
https://www.suse.com/security/cve/CVE-2015-3217.html
https://www.suse.com/security/cve/CVE-2015-5073.html
https://www.suse.com/security/cve/CVE-2015-8380.html
https://www.suse.com/security/cve/CVE-2015-8381.html
https://www.suse.com/security/cve/CVE-2015-8382.html
https://www.suse.com/security/cve/CVE-2015-8383.html
https://www.suse.com/security/cve/CVE-2015-8384.html
https://www.suse.com/security/cve/CVE-2015-8385.html
https://www.suse.com/security/cve/CVE-2015-8386.html
https://www.suse.com/security/cve/CVE-2015-8387.html
https://www.suse.com/security/cve/CVE-2015-8388.html
https://www.suse.com/security/cve/CVE-2015-8389.html
https://www.suse.com/security/cve/CVE-2015-8390.html
https://www.suse.com/security/cve/CVE-2015-8391.html
https://www.suse.com/security/cve/CVE-2015-8392.html
https://www.suse.com/security/cve/CVE-2015-8393.html
https://www.suse.com/security/cve/CVE-2015-8394.html
https://www.suse.com/security/cve/CVE-2015-8395.html
https://www.suse.com/security/cve/CVE-2016-1283.html
https://www.suse.com/security/cve/CVE-2016-3191.html
http://www.nessus.org/u?eca1fd8f

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP2:zypper in -t patch
SUSE-SLE-WE-12-SP2-2016-1827=1

SUSE Linux Enterprise Workstation Extension 12-SP1:zypper in -t patch
SUSE-SLE-WE-12-SP1-2016-1827=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2016-1827=1

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t
patch SUSE-SLE-SDK-12-SP1-2016-1827=1

SUSE Linux Enterprise Server for SAP 12:zypper in -t patch
SUSE-SLE-SAP-12-2016-1827=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2016-1827=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2016-1827=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2016-1827=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2016-1827=1

SUSE Linux Enterprise High Availability 12-SP2:zypper in -t patch
SUSE-SLE-HA-12-SP2-2016-1827=1

SUSE Linux Enterprise High Availability 12-SP1:zypper in -t patch
SUSE-SLE-HA-12-SP1-2016-1827=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2016-1827=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP1-2016-1827=1

To bring your system up-to-date, use 'zypper patch'.

Risk factor :

High / CVSS Base Score : 9.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:C)
CVSS Temporal Score : 6.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false