CVE-2022-2078

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-30 · updated 2026-10-14
Weakness: CWE-121

Description

A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code.

Affected products

Debian Linux: 11.0
Linux kernel: before 5.19 — fixed in 5.19
Red Hat Enterprise Linux: 8.0, 9.0
RedHat Virtualization: 4.0

How to fix

Upgrade to a fixed version: Linux kernel 5.19. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2096178
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
https://www.debian.org/security/2022/dsa-5161
https://bugzilla.redhat.com/show_bug.cgi?id=2096178
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
https://www.debian.org/security/2022/dsa-5161
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

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