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Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS : Libcroco vulnerabilities (USN-6958-1)

high Nessus Plugin ID 205444

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6958-1 advisory.

 It was discovered that Libcroco was incorrectly accessing data structures when reading bytes from memory, which could cause a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2017-7960)

 It was discovered that Libcroco was incorrectly handling invalid UTF-8 values when processing CSS files.
 An attacker could possibly use this issue to cause a denial of service. (CVE-2017-8834, CVE-2017-8871)

 It was discovered that Libcroco was incorrectly implementing recursion in one of its parsing functions, which could cause an infinite recursion loop and a stack overflow due to stack consumption. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-12825)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

Solution

Update the affected libcroco-tools, libcroco3 and / or libcroco3-dev packages.

See Also

https://ubuntu.com/security/notices/USN-6958-1

Plugin Details

Severity: High

ID: 205444

File Name: ubuntu_USN-6958-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/13/2024

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2020-12825

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libcroco-tools, p-cpe:/a:canonical:ubuntu_linux:libcroco3-dev, p-cpe:/a:canonical:ubuntu_linux:libcroco3

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: 8/13/2024

Vulnerability Publication Date: 4/19/2017

Reference Information

CVE: CVE-2017-7960, CVE-2017-8834, CVE-2017-8871, CVE-2020-12825

USN: 6958-1