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Ubuntu 14.04 LTS / 16.04 LTS : Perl vulnerabilities (USN-3478-1)

critical Nessus Plugin ID 104543

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Synopsis

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

Description

Jakub Wilk discovered that Perl incorrectly handled certain regular expressions. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-12837, CVE-2017-12883).

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3478-1

Plugin Details

Severity: Critical

ID: 104543

File Name: ubuntu_USN-3478-1.nasl

Version: 3.9

Type: local

Agent: unix

Published: 11/14/2017

Updated: 10/20/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2017-12883

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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:perl, p-cpe:/a:canonical:ubuntu_linux:perl-base, p-cpe:/a:canonical:ubuntu_linux:perl-debug, p-cpe:/a:canonical:ubuntu_linux:perl-modules, p-cpe:/a:canonical:ubuntu_linux:perl-modules-5.22, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libcgi-fast-perl, p-cpe:/a:canonical:ubuntu_linux:libperl-dev, p-cpe:/a:canonical:ubuntu_linux:libperl5.18, p-cpe:/a:canonical:ubuntu_linux:libperl5.22

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/13/2017

Vulnerability Publication Date: 9/19/2017

Reference Information

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

USN: 3478-1