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Debian DLA-2748-1 : tnef - LTS security update

medium Nessus Plugin ID 152773

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Synopsis

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

Description

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2748 advisory.

 - In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup. (CVE-2019-18849)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the tnef packages.

For Debian 9 stretch, this problem has been fixed in version 1.4.12-1.2+deb9u1.

See Also

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

https://www.debian.org/lts/security/2021/dla-2748

https://security-tracker.debian.org/tracker/CVE-2019-18849

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

Plugin Details

Severity: Medium

ID: 152773

File Name: debian_DLA-2748.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/24/2021

Updated: 12/4/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2019-18849

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

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

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: 8/23/2021

Vulnerability Publication Date: 11/11/2019

Reference Information

CVE: CVE-2019-18849