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Debian DSA-3733-1 : apt - security update

medium Nessus Plugin ID 95777

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Synopsis

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

Description

Jann Horn of Google Project Zero discovered that APT, the high level package manager, does not properly handle errors when validating signatures on InRelease files. An attacker able to man-in-the-middle HTTP requests to an apt repository that uses InRelease files (clearsigned Release files), can take advantage of this flaw to circumvent the signature of the InRelease file, leading to arbitrary code execution.

Solution

Upgrade the apt packages.

For the stable distribution (jessie), this problem has been fixed in version 1.0.9.8.4.

See Also

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

https://www.debian.org/security/2016/dsa-3733

Plugin Details

Severity: Medium

ID: 95777

File Name: debian_DSA-3733.nasl

Version: 3.9

Type: local

Agent: unix

Published: 12/14/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:apt, cpe:/o:debian:debian_linux:8.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/13/2016

Reference Information

CVE: CVE-2016-1252

DSA: 3733