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Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS : exuberant-ctags vulnerability (USN-5820-1)

high Nessus Plugin ID 170473

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS / 22.10 host has a package installed that is affected by a vulnerability as referenced in the USN-5820-1 advisory.

 - A flaw was found in Exuberant Ctags in the way it handles the -o option. This option specifies the tag filename. A crafted tag filename specified in the command line or in the configuration file results in arbitrary command execution because the externalSortTags() in sort.c calls the system(3) function in an unsafe way. (CVE-2022-4515)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected exuberant-ctags package.

See Also

https://ubuntu.com/security/notices/USN-5820-1

Plugin Details

Severity: High

ID: 170473

File Name: ubuntu_USN-5820-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 1/24/2023

Updated: 10/16/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2022-4515

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:exuberant-ctags

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/24/2023

Vulnerability Publication Date: 12/20/2022

Reference Information

CVE: CVE-2022-4515

USN: 5820-1