Privilege escalation in Cilium
CVE-2022-29179
Cilium is open source software for providing and securing network connectivity and loadbalancing between application workloads. Prior to versions 1.9.16, 1.10.11, and 1.11.15, if an attacker is able to perform a container escape of a container running as root on a host where Cilium is installed, the attacker can escalate privileges to cluster admin by using Cilium's Kubernetes service account. The problem has been fixed and the patch is available in versions 1.9.16, 1.10.11, and 1.11.5. There are no known workarounds available.
Vulnerability class: Privilege Escalation
EPSS: 0.003 (27.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Cilium — versions < 1.9.16, >= 1.10.0, < 1.10.11, >= 1.11.0, < 1.11.5
Weakness classification (CWE)
References
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-29179?
- CVE-2022-29179 is a high-severity vulnerability in Cilium, classified under Improper Privilege Management. CVSS score: 7.5/10. Published 2022-05-20.
- How severe is CVE-2022-29179?
- High severity. CVSS v3 base score is 7.5 out of 10.