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CVE-2023-3090

HIGHCVSS 7.8/10EPSS 0.50%

Last modified

CVE-2023-3090 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.50%

39.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.19, < 4.14.316
LinuxLinux Kernel>= 4.15, < 4.19.284
LinuxLinux Kernel>= 4.20, < 5.4.244
LinuxLinux Kernel>= 5.5, < 5.10.181
LinuxLinux Kernel>= 5.11, < 5.15.113
LinuxLinux Kernel>= 5.16, < 6.1.30
LinuxLinux Kernel>= 6.2, < 6.3.4
DebianDebian Linux10.0
DebianDebian Linux11.0
DebianDebian Linux12.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2023-3090?
CVE-2023-3090 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3090?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3090?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST