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Debian: Security Advisory for ruby-sanitize (DSA-4730-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'ruby-sanitize' package(s) announced via the DSA-4730-1 advisory.
Insight
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
Affected Software
'ruby-sanitize' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
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.