What’s Vulnerable › Vulnerabilities
CVE-2022-25636
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.6% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-02-24 · updated 2026-06-17
- Weakness: CWE-269
Description
net/netfilter/nf_dup_netdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nf_tables_offload.
Affected products
- Debian Linux: 11.0
- Linux kernel: from 5.4 before 5.4.182; from 5.5 before 5.10.103; from 5.11 before 5.15.26; from 5.16 before 5.16.12 — fixed in 5.10.103, 5.15.26, 5.16.12, 5.4.182
- NetApp H300E: all versions
- NetApp H300S: all versions
- NetApp H410C: all versions
- NetApp H410S: all versions
- NetApp H500E: all versions
- NetApp H500S: all versions
- NetApp H700E: all versions
- NetApp H700S: all versions
- Oracle Communications Cloud Native Core Binding Support Function: 22.1.3
- Oracle Communications Cloud Native Core Network Exposure Function: 22.1.1
- Oracle Communications Cloud Native Core Policy: 22.2.0
How to fix
Upgrade to a fixed version: Linux kernel 5.10.103, 5.15.26, 5.16.12, 5.4.182. Check the vendor advisory for mitigations.
References
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
- http://www.openwall.com/lists/oss-security/2022/02/22/1
- https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6
- https://github.com/Bonfee/CVE-2022-25636
- https://nickgregory.me/linux/security/2022/03/12/cve-2022-25636/
- https://security.netapp.com/advisory/ntap-20220325-0002/
- https://www.debian.org/security/2022/dsa-5095
- https://www.openwall.com/lists/oss-security/2022/02/21/2
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
- http://www.openwall.com/lists/oss-security/2022/02/22/1
- https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6
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