Vulnerability in Linux Linux_kernel
CVE-2021-43267
An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG…
EPSS: 0.576 (99.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Mailing List, x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-43267?
- CVE-2021-43267 is a critical-severity vulnerability in Linux Linux_kernel, classified under Improper Validation of Specified Quantity in Input. CVSS score: 9.8/10. Published 2021-11-02.
- How severe is CVE-2021-43267?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-43267 known to be exploited?
- 35 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.