Debian DSA-5200-1 : libtirpc - security update

high Nessus Plugin ID 163912

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Synopsis

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

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5200 advisory.

It was discovered that libtirpc, a transport-independent RPC library, does not properly handle idle TCP connections. A remote attacker can take advantage of this flaw to cause a denial of service. For the stable distribution (bullseye), this problem has been fixed in version 1.3.1-1+deb11u1. We recommend that you upgrade your libtirpc packages. For the detailed security status of libtirpc please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libtirpc

Tenable has extracted the preceding description block directly from the Debian security advisory.

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 libtirpc packages.

For the stable distribution (bullseye), this problem has been fixed in version 1.3.1-1+deb11u1.

Plugin Details

Severity: High

ID: 163912

File Name: debian_DSA-5200.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/7/2022

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2021-46828

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libtirpc-dev, p-cpe:/a:debian:debian_linux:libtirpc-common, p-cpe:/a:debian:debian_linux:libtirpc3-udeb, p-cpe:/a:debian:debian_linux:libtirpc3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2022

Vulnerability Publication Date: 7/20/2022

Reference Information

CVE: CVE-2021-46828

Detections

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