Debian DLA-2474-1 : musl security update

medium Nessus Plugin ID 143388

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Synopsis

The remote Debian host is missing a security update.

Description

The wcsnrtombs function in all musl libc versions up through 1.2.1 has been found to have multiple bugs in handling of destination buffer size when limiting the input character count, which can lead to infinite loop with no forward progress (no overflow) or writing past the end of the destination buffers.

For Debian 9 stretch, this problem has been fixed in version 1.1.16-3+deb9u1.

We recommend that you upgrade your musl packages.

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

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 musl, musl-dev, and musl-tools packages.

Plugin Details

Severity: Medium

ID: 143388

File Name: debian_DLA-2474.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/1/2020

Updated: 2/7/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2020-28928

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:musl, p-cpe:/a:debian:debian_linux:musl-dev, p-cpe:/a:debian:debian_linux:musl-tools, 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: 11/30/2020

Vulnerability Publication Date: 11/24/2020

Reference Information

CVE: CVE-2020-28928

Detections

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