CVE Catalog

CVE-2023-35788

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.53%

41th percentile - higher than 41% of all known CVEs

Summary

An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets, which may result in denial of service or privilege escalation.

Risk Assessment

For organizations, this vulnerability may lead to serious availability issues and potential privilege escalation, posing a threat to data integrity.

Recommendation

It is recommended to update the Linux kernel to version 6.3.7 or later to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.

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