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GLSA-202008-23 : chrony: Symlink vulnerability

medium Nessus Plugin ID 140071

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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-202008-23 (chrony: Symlink vulnerability)

 It was found that chrony did not check whether its PID file was a symlink.
 Impact :

 A local attacker could perform symlink attack(s) to overwrite arbitrary files with root privileges.
 Workaround :

 There is no known workaround at this time.

Solution

All chrony users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/chrony-3.5.1'

See Also

http://www.nessus.org/u?274f0ff2

https://security.gentoo.org/glsa/202008-23

Plugin Details

Severity: Medium

ID: 140071

File Name: gentoo_GLSA-202008-23.nasl

Version: 1.4

Type: local

Published: 8/31/2020

Updated: 2/22/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

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

CVSS Score Source: CVE-2020-14367

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:chrony, 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: 8/30/2020

Vulnerability Publication Date: 8/24/2020

Reference Information

CVE: CVE-2020-14367

GLSA: 202008-23