Debian DSA-4890-1 : ruby-kramdown - security update

critical Nessus Plugin ID 148536

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Synopsis

The remote Debian host is missing a security-related update.

Description

Stan Hu discovered that kramdown, a pure Ruby Markdown parser and converter, performed insufficient namespace validation of Rouge syntax highlighting formatters.

Solution

Upgrade the ruby-kramdown packages.

For the stable distribution (buster), this problem has been fixed in version 1.17.0-1+deb10u2.

Plugin Details

Severity: Critical

ID: 148536

File Name: debian_DSA-4890.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/14/2021

Updated: 1/12/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-28834

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:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:ruby-kramdown

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: 4/12/2021

Vulnerability Publication Date: 3/19/2021

Reference Information

CVE: CVE-2021-28834

DSA: 4890

Detections

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