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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (40.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel — versions 3.19
- Linux Kernel
- Debian Linux — versions 10.0, 11.0, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Exploit, Patch, Mailing List, patch)
- kernel.dance/90cbed5247439a966b645b34eb0a2e037836ea8e (Patch)
- www.debian.org/security/2023/dsa-5448 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/07/msg00030.html (Mailing List)
- security.netapp.com/advisory/ntap-20230731-0002/ (Third Party Advisory)
- www.debian.org/security/2023/dsa-5480 (Third Party Advisory)
- packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097… (VDB Entry, Third Party Advisory)
- packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098… (VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html (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.