Linux Security
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Linux Security

Debian: DSA-4730-1: ruby-sanitize security update

Date 19 Jul 2020
400
Posted By LinuxSecurity Advisories
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

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Debian Security Advisory DSA-4730-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
July 19, 2020                         https://www.debian.org/security/faq
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Package        : ruby-sanitize
CVE ID         : CVE-2020-4054
Debian Bug     : 963808

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.

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.

For the detailed security status of ruby-sanitize please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/ruby-sanitize

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

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