Severity
High
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 18.04
Description
It was discovered that the network traffic control implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1055) It was discovered that the IPsec implementation in the Linux kernel did not properly allocate enough memory when performing ESP transformations, leading to a heap-based buffer overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-27666)
CVEs contained in this USN include: CVE-2022-27666, CVE-2022-1055.
Affected Cloud Foundry Products and Versions
Severity is high unless otherwise noted.
- Bionic Stemcells
- 1.x versions prior to 1.76
- All other stemcells not listed.
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 1.76 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
References
History
2022-04-14: Initial vulnerability report published.
