CVE-2022-32296
Advisory lineage Upstream: 0 Downstream: 24
Modified
Published: 05 Jun 2022, 21:53
Last modified:03 Aug 2024, 07:39
Vulnerability Summary
Overall Risk (default)
low
13/100 CVSS Score
3.3 LOW
v3.1 (nvd)
EPSS Score
0.07% LOW
0% probability +0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
05 Jun 2022, 21:53
Published
Vulnerability first disclosed
03 Aug 2024, 07:39
Last Modified
Vulnerability information updated
Description
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
CVSS Metrics
- v3.1•LOW•Score: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:P/I:N/A:N
EPSS Trends
Current EPSS score: 0.07%• Percentile: 21%
Techniques & Countermeasures
- CWE-330•Use of Insufficiently Random Values
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
Affected Systems
- linux•linux_kernel
< 5.17.9
References (6)
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173
- https://arxiv.org/abs/2209.12993
- https://github.com/0xkol/rfc6056-device-tracker