CVE-2021-20320
Medium
Description
A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedFeb 18, 2022
First seenFeb 18, 2022
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- linux linux_kernel5.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.15, 5.15 | 5.15 |
| fedoraproject fedora | 34 | — |
| redhat enterprise_linux | 7.0, 8.0 | — |
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