Ubuntu 14.04 LTS : PyYAML vulnerability (USN-2461-3)

medium Nessus Plugin ID 80474

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-2461-3 advisory.

Stanisaw Pitucha and Jonathan Gray discovered that PyYAML did not properly handle wrapped strings. An attacker could create specially crafted YAML data to trigger an assert, causing a denial of service.

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

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 python-yaml and / or python3-yaml packages.

Plugin Details

Severity: Medium

ID: 80474

File Name: ubuntu_USN-2461-3.nasl

Version: 1.12

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 1/13/2015

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2014-9130

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python-yaml, p-cpe:/a:canonical:ubuntu_linux:python3-yaml

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: 1/12/2015

Vulnerability Publication Date: 12/8/2014

Reference Information

CVE: CVE-2014-9130

BID: 71349

USN: 2461-3

Detections

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