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Debian DLA-2487-1 : apt security update

medium Nessus Plugin ID 144029

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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that missing input validation in the ar/tar implementations of APT, the high level package manager, could cause out-of-bounds reads or infinite loops, resulting in denial of service when processing malformed deb files.

For Debian 9 stretch, this problem has been fixed in version 1.4.11.

We recommend that you upgrade your apt packages.

For the detailed security status of apt please refer to its security tracker page at: https://security-tracker.debian.org/tracker/apt

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

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/12/msg00013.html

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

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

Plugin Details

Severity: Medium

ID: 144029

File Name: debian_DLA-2487.nasl

Version: 1.4

Type: local

Agent: unix

Published: 12/10/2020

Updated: 2/2/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-27350

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libapt-inst2.0, p-cpe:/a:debian:debian_linux:apt-transport-https, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:apt, p-cpe:/a:debian:debian_linux:apt-utils, p-cpe:/a:debian:debian_linux:libapt-pkg5.0, p-cpe:/a:debian:debian_linux:libapt-pkg-dev, p-cpe:/a:debian:debian_linux:libapt-pkg-doc, p-cpe:/a:debian:debian_linux:apt-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2020

Vulnerability Publication Date: 12/10/2020

Reference Information

CVE: CVE-2020-27350