CVE-2023-25809
Description
A flaw was found in runc, where it is vulnerable to a denial of service caused by improper access control in the /sys/fs/cgroup endpoint. This flaw allows a local authenticated attacker to cause a denial of service.
Mitigation
Condition 1: Unshare the cgroup namespace ((docker|podman|nerdctl) run --cgroupns=private). This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts.
Condition 2 (very rare): add /sys/fs/cgroup to maskedPaths
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.3 | 6.3 | 5 |
| Attack Vector | Local | Local | Local |
| Attack Complexity | Low | Low | High |
| Privileges Required | Low | Low | High |
| User Interaction | None | None | None |
| Scope | Changed | Changed | Changed |
| Confidentiality | Low | Low | Low |
| Integrity Impact | Low | Low | Low |
| Availability Impact | Low | Low | Low |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
cve.org: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
Frequently Asked Questions
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