python-markdown2: CVE-2021-26813

Debian Bug report logs - #984668
python-markdown2: CVE-2021-26813

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: python-markdown2: CVE-2021-26813

Date: Sat, 06 Mar 2021 21:39:52 +0100

Source: python-markdown2
Version: 2.3.10-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/trentm/python-markdown2/pull/387
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for python-markdown2.

CVE-2021-26813[0]:
| markdown2 &gt;=1.0.1.18, fixed in 2.4.0, is affected by a regular
| expression denial of service vulnerability. If an attacker provides a
| malicious string, it can make markdown2 processing difficult or
| delayed for an extended period of time.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-26813
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26813

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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