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Ubuntu 23.04 : Ghostscript vulnerability (USN-6017-2)

critical Nessus Plugin ID 174805

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 23.04 host has packages installed that are affected by a vulnerability as referenced in the USN-6017-2 advisory.

 - In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data internal to the PostScript interpreter, in base/sbcp.c. This affects BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode. If the write buffer is filled to one byte less than full, and one then tries to write an escaped character, two bytes are written. (CVE-2023-28879)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-6017-2

Plugin Details

Severity: Critical

ID: 174805

File Name: ubuntu_USN-6017-2.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/26/2023

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2023-28879

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:23.04, p-cpe:/a:canonical:ubuntu_linux:ghostscript, p-cpe:/a:canonical:ubuntu_linux:ghostscript-x, p-cpe:/a:canonical:ubuntu_linux:libgs-common, p-cpe:/a:canonical:ubuntu_linux:libgs-dev, p-cpe:/a:canonical:ubuntu_linux:libgs10, p-cpe:/a:canonical:ubuntu_linux:libgs10-common, p-cpe:/a:canonical:ubuntu_linux:libgs9-common

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: 4/26/2023

Vulnerability Publication Date: 3/31/2023

Reference Information

CVE: CVE-2023-28879

IAVB: 2023-B-0023-S

USN: 6017-2