Detections
Analytics

GLSA-202003-55 : Zsh: Privilege escalation

high Nessus Plugin ID 134930

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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-202003-55 (Zsh: Privilege escalation)

 It was discovered that Zsh was insecure dropping privileges when unsetting PRIVILEGED option.
 Impact :

 An attacker could escalate privileges.
 Workaround :

 There is no known workaround at this time.

Solution

All Zsh users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=app-shells/zsh-5.8'

See Also

https://security.gentoo.org/glsa/202003-55

Plugin Details

Severity: High

ID: 134930

File Name: gentoo_GLSA-202003-55.nasl

Version: 1.3

Type: local

Published: 3/26/2020

Updated: 3/20/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-20044

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2020

Vulnerability Publication Date: 2/24/2020

Reference Information

CVE: CVE-2019-20044

GLSA: 202003-55