Debian alert DLA-2167-1 (python-bleach)

From:
             
 
Roberto  C. Sánchez  <roberto@debian.org> 
To:
             
 
debian-lts-announce@lists.debian.org 
Subject:
             
 
[SECURITY] [DLA 2167-1] python-bleach security update 
Date:
             
 
Wed, 1 Apr 2020 13:53:31 -0400
Message-ID:
             
 
<20200401175331.GA21005@connexer.com>
Package        : python-bleach
Version        : 1.4-1+deb8u1
CVE ID         : CVE-2020-6817
Debian Bug     : 955388


A vulnerability was discovered in python-bleach, a whitelist-based
HTML-sanitizing library.  Calls to bleach.clean with an allowed tag with
an allowed style attribute are vulnerable to a regular expression denial
of service (ReDoS).

For Debian 8 "Jessie", this problem has been fixed in version
1.4-1+deb8u1.

We recommend that you upgrade your python-bleach packages.

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