VULNERABILITY INTELLIGENCE
CVE-2021-33909
CVSS score7.8 HIGH
EPSS probability9.73%
CISA KEVNot currently listed
Published2021-07-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
Weakness classification
- nvd@nist.gov: CWE-190
Primary references
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Patch, Vendor Advisory
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory