drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in Samba
Name: |
Pufferüberlauf in Samba |
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ID: |
USN-4930-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 21.04 |
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Datum: |
Do, 29. April 2021, 22:34 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20254 |
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Applikationen: |
Samba |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============4197914772156014692== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5SyI7qr4SPsksvmw3AR685V5rW0rx4AY5"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --5SyI7qr4SPsksvmw3AR685V5rW0rx4AY5 Content-Type: multipart/mixed; boundary="zzKPtIVfhjGpDYaXa8XSYH0h4gaVUcXZU"; 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: <d8c4145c-ac92-a011-3afa-a57843e1c3e4@canonical.com> Subject: [USN-4930-1] Samba vulnerability
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========================================================================== Ubuntu Security Notice USN-4930-1 April 29, 2021
samba vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Samba would allow unintended access to files over the network.
Software Description: - samba: SMB/CIFS file, print, and login server for Unix
Details:
Peter Eriksson discovered that Samba incorrectly handled certain negative idmap cache entries. This issue could result in certain users gaining unauthorized access to files, contrary to expected behaviour.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 21.04: samba 2:4.13.3+dfsg-1ubuntu2.1
Ubuntu 20.10: samba 2:4.12.5+dfsg-3ubuntu4.3
Ubuntu 20.04 LTS: samba 2:4.11.6+dfsg-0ubuntu1.8
Ubuntu 18.04 LTS: samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.23
Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.34
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-4930-1 CVE-2021-20254
Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.13.3+dfsg-1ubuntu2.1 https://launchpad.net/ubuntu/+source/samba/2:4.12.5+dfsg-3ubuntu4.3 https://launchpad.net/ubuntu/+source/samba/2:4.11.6+dfsg-0ubuntu1.8 https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~ubuntu-0ubuntu2.23 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.34
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