CVE-2022-34918
High
Description
An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJul 4, 2022
First seenJul 4, 2022
How to fix
Update
- linux linux_kernel4.14.316, 4.19.284, 5.4.244, 5.10.130, 5.15.54, 5.18.11 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.1 ≤ v < 4.14.316, 4.15 ≤ v < 4.19.284, 4.20 ≤ v < 5.4.244, 5.5 ≤ v < 5.10.130, 5.11 ≤ v < 5.15.54, 5.16 ≤ v < 5.18.11 | 4.14.316, 4.19.284, 5.4.244, 5.10.130, 5.15.54, 5.18.11 |
| debian debian_linux | 11.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 20.04, 22.04 | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
| netapp h410c_firmware | No range specified | — |
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