AZL-80001
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80001.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-80001
- Upstream
- Published
- 2026-03-18T11:16:16Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-23247 affecting package kernel 6.6.150.1-1
- Details
-
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")
tcptwrecycle 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.
- References