drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in python-ecdsa
Name: |
Zwei Probleme in python-ecdsa |
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ID: |
USN-4196-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 19.04, Ubuntu 19.10 |
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Datum: |
Mo, 18. November 2019, 16:38 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14853
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14859 |
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Applikationen: |
python-ecdsa |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============2977190961563278861== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="NuxaoBT6TTV7X6MevmYC0DSYEJT0Jn372"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --NuxaoBT6TTV7X6MevmYC0DSYEJT0Jn372 Content-Type: multipart/mixed; boundary="ZGlXob1JqQ3SaWpuyB4Ud0BwLrWQTR9jS"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <ec835c4b-c168-9a92-2568-f1a4a95dcd82@canonical.com> Subject: [USN-4196-1] python-ecdsa vulnerabilities
--ZGlXob1JqQ3SaWpuyB4Ud0BwLrWQTR9jS Content-Type: text/plain; charset=utf-8 Content-Language: en-C Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-4196-1 November 18, 2019
python-ecdsa vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10 - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in python-ecdsa.
Software Description: - python-ecdsa: ECDSA cryptographic signature library
Details:
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)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.10: python-ecdsa 0.13.2-2ubuntu0.1 python3-ecdsa 0.13.2-2ubuntu0.1
Ubuntu 19.04: python-ecdsa 0.13-3ubuntu0.1 python3-ecdsa 0.13-3ubuntu0.1
Ubuntu 18.04 LTS: python-ecdsa 0.13-2ubuntu0.18.04.1 python3-ecdsa 0.13-2ubuntu0.18.04.1
Ubuntu 16.04 LTS: python-ecdsa 0.13-2ubuntu0.16.04.1 python3-ecdsa 0.13-2ubuntu0.16.04.1
In general, a standard system update will make all the necessary changes.
References: https://usn.ubuntu.com/4196-1 CVE-2019-14853, CVE-2019-14859
Package Information: https://launchpad.net/ubuntu/+source/python-ecdsa/0.13.2-2ubuntu0.1 https://launchpad.net/ubuntu/+source/python-ecdsa/0.13-3ubuntu0.1 https://launchpad.net/ubuntu/+source/python-ecdsa/0.13-2ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/python-ecdsa/0.13-2ubuntu0.16.04.1
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