CVE-2018-18445
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 17, 2018
First seenOct 17, 2018
How to fix
Update
- linux linux_kernel4.14.75, 4.18.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.14.9 ≤ v < 4.14.75, 4.15 ≤ v < 4.18.13 | 4.14.75, 4.18.13 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 18.10 | — |
| redhat enterprise_linux_desktop | 7.0 | — |
| redhat enterprise_linux_server | 7.0, 7.6 | — |
| redhat enterprise_linux_server_aus | 7.6 | — |
| redhat enterprise_linux_server_eus | 7.6 | — |
| redhat enterprise_linux_server_tus | 7.6 | — |
| redhat enterprise_linux_workstation | 7.0 | — |
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