drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Sudo
Name: |
Zwei Probleme in Sudo |
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ID: |
USN-4705-1 |
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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 |
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Datum: |
Di, 26. Januar 2021, 21:15 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3156
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23239 |
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Applikationen: |
sudo |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============8792207321763265000== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="iQCNToxY7PCu8WgHgCMLPhA1ZbzhgRhSN"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --iQCNToxY7PCu8WgHgCMLPhA1ZbzhgRhSN Content-Type: multipart/mixed; boundary="pQrO0Nu3JVKn3gKiRcWdfn2X1AMnOqm9s"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <f8f74de9-c1cd-fdf1-3596-52c7594fe8cd@canonical.com> Subject: [USN-4705-1] Sudo vulnerabilities
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========================================================================== Ubuntu Security Notice USN-4705-1 January 26, 2021
sudo vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in Sudo.
Software Description: - sudo: Provide limited super user privileges to specific users
Details:
It was discovered that Sudo incorrectly handled memory when parsing command lines. A local attacker could possibly use this issue to obtain unintended access to the administrator account. (CVE-2021-3156)
It was discovered that the Sudo sudoedit utility incorrectly handled checking directory permissions. A local attacker could possibly use this issue to bypass file permissions and determine if a directory exists or not. (CVE-2021-23239)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: sudo 1.9.1-1ubuntu1.1 sudo-ldap 1.9.1-1ubuntu1.1
Ubuntu 20.04 LTS: sudo 1.8.31-1ubuntu1.2 sudo-ldap 1.8.31-1ubuntu1.2
Ubuntu 18.04 LTS: sudo 1.8.21p2-3ubuntu1.4 sudo-ldap 1.8.21p2-3ubuntu1.4
Ubuntu 16.04 LTS: sudo 1.8.16-0ubuntu1.10 sudo-ldap 1.8.16-0ubuntu1.10
In general, a standard system update will make all the necessary changes.
References: https://usn.ubuntu.com/4705-1 CVE-2021-23239, CVE-2021-3156
Package Information: https://launchpad.net/ubuntu/+source/sudo/1.9.1-1ubuntu1.1 https://launchpad.net/ubuntu/+source/sudo/1.8.31-1ubuntu1.2 https://launchpad.net/ubuntu/+source/sudo/1.8.21p2-3ubuntu1.4 https://launchpad.net/ubuntu/+source/sudo/1.8.16-0ubuntu1.10
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