SUSE SLED12 / SLES12 Security Update : perl (SUSE-SU-2017:3092-1)

critical Nessus Plugin ID 104783
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

This update for perl fixes the following issues: Security issues fixed :

- CVE-2017-12837: Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier. (bnc#1057724)

- CVE-2017-12883: Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape.
(bnc#1057721)

- CVE-2017-6512: Race condition in the rmtree and remove_tree functions in the File-Path module before 2.13 for Perl allows attackers to set the mode on arbitrary files via vectors involving directory-permission loosening logic. (bnc#1047178) Bug fixes :

- backport set_capture_string changes from upstream (bsc#999735)

- reformat baselibs.conf as source validator workaround

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.

Solution

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

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2017-1903=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1903=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1903=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1903=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1903=1

SUSE Container as a Service Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2017-1903=1

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2017-1903=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1047178

https://bugzilla.suse.com/show_bug.cgi?id=1057721

https://bugzilla.suse.com/show_bug.cgi?id=1057724

https://bugzilla.suse.com/show_bug.cgi?id=999735

https://www.suse.com/security/cve/CVE-2017-12837/

https://www.suse.com/security/cve/CVE-2017-12883/

https://www.suse.com/security/cve/CVE-2017-6512/

http://www.nessus.org/u?74b83522

Plugin Details

Severity: Critical

ID: 104783

File Name: suse_SU-2017-3092-1.nasl

Version: 3.8

Type: local

Agent: unix

Published: 11/27/2017

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:perl, p-cpe:/a:novell:suse_linux:perl-base, p-cpe:/a:novell:suse_linux:perl-base-debuginfo, p-cpe:/a:novell:suse_linux:perl-debuginfo, p-cpe:/a:novell:suse_linux:perl-debugsource, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/24/2017

Vulnerability Publication Date: 6/1/2017

Reference Information

CVE: CVE-2017-12837, CVE-2017-12883, CVE-2017-6512