Debian DLA-172-1 : libextlib-ruby security update

high Nessus Plugin ID 82157


The remote Debian host is missing a security update.


Import patches 633974b2759d9b92 and 4540e7102b803624 from uptream to remove symbol and YAML coercion from the XML parser.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected packages.

See Also

Plugin Details

Severity: High

ID: 82157

File Name: debian_DLA-172.nasl

Version: 1.6

Type: local

Agent: unix

Published: 3/26/2015

Updated: 1/11/2021

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

Risk Information


Risk Factor: High

Score: 8.4


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

Temporal Vector: E:F/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libextlib-ruby, p-cpe:/a:debian:debian_linux:libextlib-ruby-doc, p-cpe:/a:debian:debian_linux:libextlib-ruby1.8, p-cpe:/a:debian:debian_linux:libextlib-ruby1.9.1, cpe:/o:debian:debian_linux:6.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/14/2015

Exploitable With

Metasploit (Ruby on Rails XML Processor YAML Deserialization Code Execution)

Reference Information

CVE: CVE-2013-0156

BID: 57187