VDB
DEBIAN-CVE-2021-33909
DEBIAN-CVE-2021-33909
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0, 0, 0 |
| Debian:11 | linux | 0, 0, 0 |
| Debian:14 | linux | 0, 0, 0 |
| Debian:12 | linux | 0, 0, 0 |
Exploit Intelligence
- CVE-2021-33909 Sequoia (github-poc)
- Exploit code for CVE-2021-33909,Just a dump of removed https://github.com/AmIAHuman/ repo (github-poc)
- This module fixes an issue in the kernels filesystem layer (CVE-2021-33909) by kprobe-replacing vulnerable functions during runtime (github-poc)
- Sequoia exploit (7/20/21) (github-poc)
Timeline
- Jul 20, 2021 CVE Published
- Apr 28, 2026 CVE Updated