Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 18.04
- Canonical Ubuntu 22.04
Description
Matthieu Barjole and Victor Cutillas discovered that Sudo incorrectly handled user-specified editors when using the sudoedit command. A local attacker that has permission to use the sudoedit command could possibly use this issue to edit arbitrary files. (CVE-2023-22809) It was discovered that the Protobuf-c library, used by Sudo, incorrectly handled certain arithmetic shifts. An attacker could possibly use this issue to cause Sudo to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-33070) Update Instructions: Run `sudo pro fix USN-5811-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: sudo-ldap – 1.8.21p2-3ubuntu1.5 sudo – 1.8.21p2-3ubuntu1.5 No subscription required
CVEs contained in this USN include: CVE-2022-33070, CVE-2023-22809.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Bionic Stemcells
-
- 1.x versions prior to 1.171
- All other stemcells not listed.
- cflinuxfs3
-
- All versions prior to 0.351.0
- cflinuxfs4
-
- All versions prior to 0.59.0
- Jammy Stemcells
-
- 1.x versions prior to 1.80
- All other stemcells not listed.
- CF Deployment
-
- All versions prior to 26.4.0, or later versions with Jammy Stemcells prior to 1.80 or Bionic Stemcells prior to 1.171
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- Bionic Stemcells
-
- Upgrade 1.x versions to 1.171 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- cflinuxfs3
-
- Upgrade all versions to 0.351.0 or greater
- cflinuxfs4
-
- Upgrade all versions to 0.59.0 or greater
- Jammy Stemcells
-
- Upgrade 1.x versions to 1.80 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- CF Deployment
-
- Upgrade all versions to 26.4.0 or greater, upgrade Jammy Stemcells to 1.80 or greater, and upgrade Bionic Stemcells to 1.171 or greater
References
History
2023-02-24: Initial vulnerability report published.
