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

EPSS: 0.026 (84.0th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_CONFIRM, 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.