CVE-2025-39955
Public on 2025-10-09
Modified on 2025-10-10
Description
In the Linux kernel, the following vulnerability has been resolved:
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | kernel | 2025-10-27 | ALAS2-2025-3053 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2025-10-27 | ALAS2KERNEL-5.10-2025-109 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2025-10-27 | ALAS2KERNEL-5.15-2025-093 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2025-10-27 | ALAS2KERNEL-5.4-2025-113 | Fixed |
| Amazon Linux 2023 | kernel | 2025-10-14 | ALAS2023-2025-1223 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.147-172.266 | 2025-11-10 | ALAS2023LIVEPATCH-2025-108 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.148-173.267 | 2025-11-10 | ALAS2023LIVEPATCH-2025-109 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.150-174.273 | 2025-11-10 | ALAS2023LIVEPATCH-2025-107 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.153-175.280 | 2025-11-10 | ALAS2023LIVEPATCH-2025-103 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.12.40-63.114 | 2025-11-10 | ALAS2023LIVEPATCH-2025-106 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.12.40-64.114 | 2025-11-10 | ALAS2023LIVEPATCH-2025-105 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.12.46-66.121 | 2025-11-10 | ALAS2023LIVEPATCH-2025-104 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.12.48-67.114 | 2025-11-10 | ALAS2023LIVEPATCH-2025-102 | Fixed |
| Amazon Linux 2023 | kernel6.12 | 2025-10-27 | ALAS2023-2025-1254 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |