Buffer overflow in Linux Kernel
CVE-2023-3090
A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Kernel — versions 3.19
- Linux Linux_kernel
- Debian Debian_linux — versions 10.0, 11.0, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve-coordination@google.com (Exploit, Patch, Mailing List, patch)
- cve-coordination@google.com (Patch)
- cve-coordination@google.com (Third Party Advisory)
- cve-coordination@google.com (Mailing List)
- cve-coordination@google.com (Third Party Advisory)
- cve-coordination@google.com (Third Party Advisory)
- cve-coordination@google.com (VDB Entry, Third Party Advisory)
- cve-coordination@google.com (VDB Entry, Third Party Advisory)
- cve-coordination@google.com (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-3090?
- CVE-2023-3090 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-06-28.
- How severe is CVE-2023-3090?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-3090 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.