Debian DSA-3982-1 : perl - security update

critical Nessus Plugin ID 103392

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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-2017-12837 Jakub Wilk reported a heap buffer overflow flaw in the regular expression compiler, allowing a remote attacker to cause a denial of service via a specially crafted regular expression with the case-insensitive modifier.

- CVE-2017-12883 Jakub Wilk reported a buffer over-read flaw in the regular expression parser, allowing a remote attacker to cause a denial of service or information leak.

Solution

Upgrade the perl packages.

For the oldstable distribution (jessie), these problems have been fixed in version 5.20.2-3+deb8u9.

For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u2.

Plugin Details

Severity: Critical

ID: 103392

File Name: debian_DSA-3982.nasl

Version: 3.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/22/2017

Updated: 11/20/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:perl, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/21/2017

Reference Information

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

DSA: 3982

Detections

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