Vulnerability Bulletins |
CVE-2026-23247 |
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| Affected software | LINUX KERNEL |
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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. |
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Link: |
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| https://nvd.nist.gov/vuln/detail/CVE-2026-23247 | |