Privilege escalation in Linux Kernel
CVE-2022-25636
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.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2022/02/21/2 (Exploit, Mailing List, Third Party Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/ (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/02/22/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5095 (vendor-advisory, Third Party Advisory)
- www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
- nickgregory.me/linux/security/2022/03/12/cve-2022-25636/ (Exploit, Third Party Advisory)
- github.com/Bonfee/CVE-2022-25636 (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085… (VDB Entry, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220325-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-25636?
- CVE-2022-25636 is a high-severity vulnerability in Linux Kernel, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2022-02-24.
- How severe is CVE-2022-25636?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-25636 known to be exploited?
- 76 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.