PT-2025-34042 · Cri-O · Cri-O

Dongha Kim · Published 2025-08-20 · Updated 2025-08-29 · CVE-2025-4437

Positive Technologies (AI Summary)

CVSS v3.1

5.7

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: CRI-O (affected versions not specified)

Description: CRI-O is susceptible to a denial-of-service issue. When a container is launched with securityContext.runAsUser set to a non-existent user, CRI-O attempts to create the user by reading the entire /etc/passwd file into memory. If the /etc/passwd file is excessively large, this can lead to high memory consumption, potentially causing applications to be terminated due to out-of-memory conditions. This may disrupt other pods and services running on the same host.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-4437

GHSA-8F93-J3FX-72F3

GO-2025-3897

Affected Products

Cri-O

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-4437 · Security Note
• https://osv.dev/vulnerability/GO-2025-3897 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8f93-j3fx-72f3 · Vendor Advisory
• https://github.com/cri-o/cri-o · Note
• https://github.com/advisories/GHSA-8f93-j3fx-72f3 · Note
• https://access.redhat.com/security/cve/CVE-2025-4437 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2375084 · Note
• https://twitter.com/VulmonFeeds/status/1958243224515928453 · Twitter Post
• https://pkg.go.dev/vuln/GO-2025-3897 · Note
• https://twitter.com/CVEnew/status/1958180753310941401 · Twitter Post