Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 22.04
Description
It was discovered that libssh incorrectly handled the ProxyCommand and the ProxyJump features. A remote attacker could possibly use this issue to inject malicious code into the command of the features mentioned through the hostname parameter. (CVE-2023-6004) It was discovered that libssh incorrectly handled return codes when performing message digest operations. A remote attacker could possibly use this issue to cause libssh to crash, obtain sensitive information, or execute arbitrary code. (CVE-2023-6918) Update Instructions: Run `sudo pro fix USN-6592-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libssh-gcrypt-dev – 0.9.3-2ubuntu2.5 libssh-4 – 0.9.3-2ubuntu2.5 libssh-gcrypt-4 – 0.9.3-2ubuntu2.5 libssh-dev – 0.9.3-2ubuntu2.5 libssh-doc – 0.9.3-2ubuntu2.5 No subscription required
CVEs contained in this USN include: CVE-2023-6004, CVE-2023-6918.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- cflinuxfs4
- All versions prior to 1.67.0
- Jammy Stemcells
- 1.x versions prior to 1.351
- All other stemcells not listed.
- CF Deployment
- All versions with Jammy Stemcells prior to 1.351
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below.
The Cloud Foundry project recommends upgrading the following releases:
- cflinuxfs4
- Upgrade all versions to 1.67.0 or greater
- Jammy Stemcells
- Upgrade 1.x versions to 1.351 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- CF Deployment
- For all versions, upgrade Jammy Stemcells to 1.351 or greater
References
History
2024-02-29: Initial vulnerability report published.
