CVE Catalog

CVE-2023-3389

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.73%

49th percentile - higher than 49% of all known CVEs

Summary

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.

Risk Assessment

Exploitation of this vulnerability may lead to unauthorized access to system resources, posing a significant security threat to the organization.

Recommendation

It is recommended to upgrade past commit ef7dfac51d8ed961b742218f526bd589f3900a59 for the 5.10 stable version and 0e388fce7aec40992eadee654193cad345d62663 for the 5.15 stable version.

Related vulnerabilities

Original NVD description (English source)

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS