VDB
DEBIAN-CVE-2021-20322
DEBIAN-CVE-2021-20322
PUBLISHED
CVSS 7.400000095367432 HIGH
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
Risk Scores
CVSS 3.1
7.400000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:12 | linux | 0 |
| Debian:14 | linux | 0 |
Timeline
- Feb 18, 2022 CVE Published
- Oct 23, 2026 CVE Updated