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Test ID:1.3.6.1.4.1.25623.1.0.704730
Category:Debian Local Security Checks
Title:Debian: Security Advisory for ruby-sanitize (DSA-4730-1)
Summary:The remote host is missing an update for the 'ruby-sanitize'; package(s) announced via the DSA-4730-1 advisory.
Description:Summary:
The remote host is missing an update for the 'ruby-sanitize'
package(s) announced via the DSA-4730-1 advisory.

Vulnerability Insight:
Michal Bentkowski discovered that ruby-sanitize, a whitelist-based HTML
sanitizer, is prone to a HTML sanitization bypass vulnerability when
using the relaxed
or a custom config allowing certain elements.
Content in a or element may not be sanitized correctly even
if math and svg are not in the allowlist.

Affected Software/OS:
'ruby-sanitize' package(s) on Debian Linux.

Solution:
For the stable distribution (buster), this problem has been fixed in
version 4.6.6-2.1~
deb10u1.

We recommend that you upgrade your ruby-sanitize packages.

CVSS Score:
6.8

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-4054
https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m
Debian Security Information: DSA-4730 (Google Search)
https://www.debian.org/security/2020/dsa-4730
https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9
https://github.com/rgrove/sanitize/releases/tag/v5.2.1
https://usn.ubuntu.com/4543-1/
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