CVE-2026-23247

N/A

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: secure_seq: add back ports to TS offset This reverts 28ee1b746f49 ("secure_seq: downgrade to per-host timestamp offsets") tcp_tw_recycle went away in 2017. Zhouyan Deng reported off-path TCP source port leakage via SYN cookie side-channel that can be fixed in multiple ways. One of them is to bring back TCP ports in TS offset randomization. As a bonus, we perform a single siphash() computation to provide both an ISN and a TS offset.

CVE Details

CVSS v3.1 ScoreN/A

Published3/18/2026

Last Modified3/18/2026

Sourcenvd

Honeypot Sightings0

References

https://git.kernel.org/stable/c/165573e41f2f66ef98940cf65f838b2cb575d9d1(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/46e5b0d7cf55821527adea471ffe52a5afbd9caf(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/eae2f14ab2efccdb7480fae7d42c4b0116ef8805(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

IOC Correlations

No correlations recorded

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