Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 18.04
Description
It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-28755) It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service. This issue is being addressed only for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2023-28756) Update Instructions: Run `sudo pro fix USN-6055-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libruby2.3 – 2.3.1-2~ubuntu16.04.16+esm5 ruby2.3 – 2.3.1-2~ubuntu16.04.16+esm5 ruby2.3-dev – 2.3.1-2~ubuntu16.04.16+esm5 ruby2.3-doc – 2.3.1-2~ubuntu16.04.16+esm5 ruby2.3-tcltk – 2.3.1-2~ubuntu16.04.16+esm5 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
CVEs contained in this USN include: CVE-2023-28755, CVE-2023-28756.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- cflinuxfs3
- All versions prior to 0.365.0
- CF Deployment
- All versions prior to 30.0.0
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- cflinuxfs3
- Upgrade all versions to 0.365.0 or greater
- CF Deployment
- Upgrade all versions to 30.0.0 or greater
History
2023-06-30: Initial vulnerability report published.
