CVE-2023-2163 — Incorrect Verifier Branch Pruning Logic Leads To Arbitrary Read/Write In Linux Kernel and Lateral Privilege Escalation

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Linux / Linux Kernel	unaffected 0 before 5.4; affected 0 before 71b547f561247897a0a14f3082730156c0533fed

CWE

CWE-682

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed

ADP enrichment

CVE

No English description supplied.

https://bughunters.google.com/blog/6303226026131456/a-deep-dive-into-cve-2023-2163-how-we-found-and-fixed-an-ebpf-linux-kernel-vulnerability
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed

CISA-ADP

No English description supplied.

No references supplied.