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CVE-2022-32296

LOWCVSS 3.3/10EPSS 0.43%

Last modified

CVE-2022-32296 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
3.3/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
0.43%

34.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel< 5.17.9

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-32296?
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.
How severe is CVE-2022-32296?
CVE-2022-32296 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2022-32296?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-32296?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST