CVE-2026-23247
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
tcp: secure_seq: add back ports to TS offset
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 28ee1b746f493b7c62347d714f58fbf4f70df4f0 | affected | git | e873e8c16b2fb743a381a9e59c108e63512301ec | Unavailable | None listed |
| 28ee1b746f493b7c62347d714f58fbf4f70df4f0 | affected | git | 5da5662181ef8a251e3ba564903002c2e87de452 | Unavailable | None listed |
| 28ee1b746f493b7c62347d714f58fbf4f70df4f0 | affected | git | eae2f14ab2efccdb7480fae7d42c4b0116ef8805 | Unavailable | None listed |
| 28ee1b746f493b7c62347d714f58fbf4f70df4f0 | affected | git | 46e5b0d7cf55821527adea471ffe52a5afbd9caf | Unavailable | None listed |
| 28ee1b746f493b7c62347d714f58fbf4f70df4f0 | affected | git | 165573e41f2f66ef98940cf65f838b2cb575d9d1 | Unavailable | None listed |
| 443fac9f2618b93cbc5ab068dc594530236b3a23 | affected | git | Unavailable | Unavailable | None listed |
| 4.10.14 | affected | semver | 4.11 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.11 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.94 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.17 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.7 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |