Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 28ee1b746f493b7c62347d714f58fbf4f70df4f0 before e873e8c16b2fb743a381a9e59c108e63512301ec; affected 28ee1b746f493b7c62347d714f58fbf4f70df4f0 before 5da5662181ef8a251e3ba564903002c2e87de452; affected 28ee1b746f493b7c62347d714f58fbf4f70df4f0 before eae2f14ab2efccdb7480fae7d42c4b0116ef8805; affected 28ee1b746f493b7c62347d714f58fbf4f70df4f0 before 46e5b0d7cf55821527adea471ffe52a5afbd9caf; affected 28ee1b746f493b7c62347d714f58fbf4f70df4f0 before 165573e41f2f66ef98940cf65f838b2cb575d9d1; affected 443fac9f2618b93cbc5ab068dc594530236b3a23; affected 4.10.14 before 4.11 |
| Linux / Linux | affected 4.11; unaffected 0 before 4.11; unaffected 6.6.160 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.17 through 6.18.*; unaffected 6.19.7 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e873e8c16b2fb743a381a9e59c108e63512301ec
- https://git.kernel.org/stable/c/5da5662181ef8a251e3ba564903002c2e87de452
- https://git.kernel.org/stable/c/eae2f14ab2efccdb7480fae7d42c4b0116ef8805
- https://git.kernel.org/stable/c/46e5b0d7cf55821527adea471ffe52a5afbd9caf
- https://git.kernel.org/stable/c/165573e41f2f66ef98940cf65f838b2cb575d9d1