This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2020-6817 →

DEBIAN-CVE-2020-6817

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed t...

Original description

The description as published by the source.

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 python-bleach

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]

Debian:13 python-bleach

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]

Debian:14 python-bleach

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]

References

advisory security-tracker.debian.org