Incorrect Verifier Branch Pruning Logic Leads To Arbitrary Read/Write In Linux Kernel and Lateral Privilege Escalation
70Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 10epss 3.5%
from disclosure to weapon434 days
Published on NVDSep 20
1st PoC+434d
VulnCheck+714d
exploitation probability
3.5%top 12% of all CVEs
observed exploitation
yesVulnCheck
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products
Linux · Linux Kernelpublic PoCs found — 1
githubgithub.com/letsr00t/CVE-2023-2163★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.