In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: re-fetch conntrack after insertion
In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry.
This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.15.50-23.125Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-develUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-livepatch-5.10.126-117.518Upgrade python-perfUpgrade kernel-livepatch-4.14.285-215.501Upgrade perfUpgrade bpftoolUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel | Mar 14, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Jul 1, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-aws-5.4Upgrade linux-gcpUpgrade linux-kvmUpgrade linux-gkeopUpgrade linux-lowlatencyUpgrade linux-aws-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-gkeUpgrade linux-azure-5.15Upgrade linux-aws-5.15Upgrade linux-riscv-5.15Upgrade linux-oracle-5.15Upgrade linux-aws-hweUpgrade linux-realtimeUpgrade linux-azure-fipsUpgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-fipsUpgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-oracle-5.4Upgrade linux-raspiUpgrade linux-gcp-5.15Upgrade linux-iotUpgrade linux-azureUpgrade linux-gcp-fipsUpgrade linux-hwe-5.15Upgrade linux-gcp-5.4Upgrade linux-ibm-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-hweUpgrade linuxUpgrade linux-azure-4.15Upgrade linux-bluefieldUpgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-gcp-4.15Upgrade linux-awsUpgrade linux-raspi-5.4 | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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