USN-5174-2
USN-5174-2 · samba regression
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
USN-5174-1 fixed vulnerabilities in Samba. Some of the changes introduced a regression in Kerberos authentication in certain environments. Please see the following upstream bug for more information: https://bugzilla.samba.org/show_bug.cgi?id=14922 This update fixes the problem. Original advisory details: Stefan Metzmacher discovered that Samba incorrectly handled SMB1 client connections. A remote attacker could possibly use this issue to downgrade connections to plaintext authentication. (CVE-2016-2124) Andrew Bartlett discovered that Samba incorrectly mapping domain users to local users. An authenticated attacker could possibly use this issue to become root on domain members. (CVE-2020-25717) Andrew Bartlett discovered that Samba did not properly check sensitive attributes. An authenticated attacker could possibly use this issue to escalate privileges. (CVE-2020-25722) Joseph Sutton discovered that Samba incorrectly handled certain TGS requests. An authenticated attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2021-3671) The fix for CVE-2020-25717 results in possible behaviour changes that could affect certain environments. Please see the upstream advisory for more information: https://www.samba.org/samba/security/CVE-2020-25717.html
Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
samba Ubuntu:18.04:LTS
- Versions du logiciel
- 2:4.6.7+dfsg-1ubuntu3
- 2:4.7.1+dfsg-1ubuntu1
- 2:4.7.3+dfsg-1ubuntu1
- 2:4.7.4+dfsg-1ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.4
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.6
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.7
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.9
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.10
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.11
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.13
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.14
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.15
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.16
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.17
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.18
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.19
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.20
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.23
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.24
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.26
- Plages de versions concernées
- ECOSYSTEM: < 2:4.7.6+dfsg~ubuntu-0ubuntu2.27
Mettez à jour vers 2:4.7.6+dfsg~ubuntu-0ubuntu2.27