CVE Catalog

CVE-2023-3611

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

19th percentile - higher than 19% of all known CVEs

Summary

A vulnerability in the Linux kernel's net/sched: sch_qfq component allows for out-of-bounds writes, potentially leading to local privilege escalation.

Risk Assessment

Exploitation of this vulnerability could allow an attacker to gain elevated privileges on the system, posing a significant security risk.

Recommendation

It is recommended to upgrade past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.

Related vulnerabilities

Original NVD description (English source)

An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.

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