CVE-2018-18445
low
CVSS v3
—
CVSS v2
—
VIR risk
2.5
Description
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-18445
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-18445.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201811-1
Vendor advisory: arch — https://security.archlinux.org/ASA-201811-2
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 4.14.75-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 4.18.20-1 |
| debian | bullseye | fixed | 4.18.20-1 |
| debian | forky | fixed | 4.18.20-1 |
| debian | sid | fixed | 4.18.20-1 |
| debian | trixie | fixed | 4.18.20-1 |
References
Verify integrity in audit chain (admin only). AS-IS.