Strix
26.1K

CVE-2023-2163

HIGHCVSS 8.8/10EPSS 3.55%

Last modified

CVE-2023-2163 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape.. EPSS estimates a 3.55% chance of exploitation in the next 30 days.

Description

Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
3.55%

87.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 5.3, < 5.4.242
LinuxLinux Kernel>= 5.5, < 5.10.179
LinuxLinux Kernel>= 5.11, < 5.15.109
LinuxLinux Kernel>= 5.16, < 6.1.26
LinuxLinux Kernel>= 6.2, < 6.2.13

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-2163?
Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape.
How severe is CVE-2023-2163?
CVE-2023-2163 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.55% probability of exploitation in the next 30 days.
How do I fix CVE-2023-2163?
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-2023-2163?

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

Scan your code now

Source: NVD / NIST