Use After Free in Linux Kernel
CVE-2023-0590
A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.
Vulnerability class: Use-After-Free
EPSS: 0.002 (9.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel — versions 6.1
- N/a Kernel — versions Linux kernel 6.1-rc2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2023-0590?
- CVE-2023-0590 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 4.7/10. Published 2023-03-23.
- How severe is CVE-2023-0590?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2023-0590 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.