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GLSA-202105-29 : Tar: Denial of service

medium Nessus Plugin ID 157036

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-202105-29 (Tar: Denial of service)

 It was discovered that GNU Tar had a memory leak when processing archive headers.
 Impact :

 A remote attacker could entice a user to open a specially crafted archive using Tar, possibly resulting in a Denial of Service condition.
 Workaround :

 There is no known workaround at this time.

Solution

All Tar users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=app-arch/tar-1.34'

See Also

https://security.gentoo.org/glsa/202105-29

Plugin Details

Severity: Medium

ID: 157036

File Name: gentoo_GLSA-202105-29.nasl

Version: 1.4

Type: local

Published: 1/24/2022

Updated: 12/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-20193

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:tar, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 5/26/2021

Vulnerability Publication Date: 3/26/2021

Reference Information

CVE: CVE-2021-20193

GLSA: 202105-29