Mageia alert MGASA-2020-0002 (python-ecdsa)

From:
             
 
Mageia Updates <buildsystem-daemon@mageia.org> 
To:
             
 
updates-announce@ml.mageia.org 
Subject:
             
 
[updates-announce] MGASA-2020-0002: Updated python-ecdsa packages fix security vulnerabilities 
Date:
             
 
Sun, 5 Jan 2020 16:38:53 +0100
Message-ID:
             
 
<20200105153853.28C0D9F641@duvel.mageia.org>
MGASA-2020-0002 - Updated python-ecdsa packages fix security vulnerabilities

Publication date: 05 Jan 2020
URL: https://advisories.mageia.org/MGASA-2020-0002.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2019-14853,
     CVE-2019-14859

Description:
Updated python-ecdsa packages fix security vulnerabilities:

It was discovered that python-ecdsa incorrectly handled certain signatures.
A remote attacker could possibly use this issue to cause python-ecdsa to
generate unexpected exceptions, resulting in a denial of service
(CVE-2019-14853).

It was discovered that python-ecdsa incorrectly verified DER encoding in
signatures. A remote attacker could use this issue to perform certain
malleability attacks (CVE-2019-14859).

References:
- https://bugs.mageia.org/show_bug.cgi?id=25729
- https://usn.ubuntu.com/4196-1/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1...

SRPMS:
- 7/core/python-ecdsa-0.13.3-1.mga7