Debian DSA-4347-1 : perl - security update

critical Nessus Plugin ID 119290
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Debian host is missing a security-related update.

Description

Multiple vulnerabilities were discovered in the implementation of the Perl programming language. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2018-18311 Jayakrishna Menon and Christophe Hauser discovered an integer overflow vulnerability in Perl_my_setenv leading to a heap-based buffer overflow with attacker-controlled input.

- CVE-2018-18312 Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow write during compilation, potentially allowing arbitrary code execution.

- CVE-2018-18313 Eiichi Tsukata discovered that a crafted regular expression could cause a heap-based buffer overflow read during compilation which leads to information leak.

- CVE-2018-18314 Jakub Wilk discovered that a specially crafted regular expression could lead to a heap-based buffer overflow.

Solution

Upgrade the perl packages.

For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u5.

See Also

https://security-tracker.debian.org/tracker/CVE-2018-18311

https://security-tracker.debian.org/tracker/CVE-2018-18312

https://security-tracker.debian.org/tracker/CVE-2018-18313

https://security-tracker.debian.org/tracker/CVE-2018-18314

https://security-tracker.debian.org/tracker/source-package/perl

https://packages.debian.org/source/stretch/perl

https://www.debian.org/security/2018/dsa-4347

Plugin Details

Severity: Critical

ID: 119290

File Name: debian_DSA-4347.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/30/2018

Updated: 6/19/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:perl, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/29/2018

Vulnerability Publication Date: 12/5/2018

Reference Information

CVE: CVE-2018-18311, CVE-2018-18312, CVE-2018-18313, CVE-2018-18314

DSA: 4347

IAVA: 2018-A-0407-S