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Ubuntu Security Notice USN-5731-1

Ubuntu Security Notice USN-5731-1
Posted Nov 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5731-1 - It was discovered that multipath-tools incorrectly handled symlinks. A local attacker could possibly use this issue, in combination with other issues, to escalate privileges. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10. It was discovered that multipath-tools incorrectly handled access controls. A local attacker could possibly use this issue, in combination with other issues, to escalate privileges.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2022-41973, CVE-2022-41974
SHA-256 | 9624ae8fb4d6e0770272c04b66838bae629e7de815fff8a5dfa0edc820f31a3a

Ubuntu Security Notice USN-5731-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5731-1
November 17, 2022

multipath-tools vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in multipath-tools.

Software Description:
- multipath-tools: maintain multipath block device access

Details:

It was discovered that multipath-tools incorrectly handled symlinks. A
local attacker could possibly use this issue, in combination with other
issues, to escalate privileges. This issue only affected Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-41973)

It was discovered that multipath-tools incorrectly handled access controls.
A local attacker could possibly use this issue, in combination with other
issues, to escalate privileges. (CVE-2022-41974)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
multipath-tools 0.8.8-1ubuntu1.22.10.1

Ubuntu 22.04 LTS:
multipath-tools 0.8.8-1ubuntu1.22.04.1

Ubuntu 20.04 LTS:
multipath-tools 0.8.3-1ubuntu2.1

Ubuntu 18.04 LTS:
multipath-tools 0.7.4-2ubuntu3.2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5731-1
CVE-2022-41973, CVE-2022-41974

Package Information:
https://launchpad.net/ubuntu/+source/multipath-tools/0.8.8-1ubuntu1.22.10.1
https://launchpad.net/ubuntu/+source/multipath-tools/0.8.8-1ubuntu1.22.04.1
https://launchpad.net/ubuntu/+source/multipath-tools/0.8.3-1ubuntu2.1
https://launchpad.net/ubuntu/+source/multipath-tools/0.7.4-2ubuntu3.2
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