An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel before 5.0.11. There is a net/ipv4/tcp_input.c signed integer overflow in tcp_ack_update_rtt() when userspace writes a very large integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading to a denial of service or possibly unspecified other impact, aka CID-19fad20d15a6.
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 |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Mar 12, 2020 | Nov 7, 2019 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Nov 7, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-tools-libsUpgrade python-perfUpgrade kernelUpgrade kernel-toolsUpgrade kernel-develUpgrade perfUpgrade kernel-debuginfo | Apr 16, 2020 | Nov 7, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-headersUpgrade perfUpgrade kernel-sourceUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-develUpgrade kernelUpgrade kernel-tools-libsUpgrade python-perfUpgrade python3-perf | Mar 23, 2020 | Nov 7, 2019 |
| Oracle_linux | — | Upgrade kernel | Oct 5, 2022 | Apr 16, 2019 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Nov 7, 2019 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Mar 12, 2020 | Nov 7, 2019 |
| Suse | — | Upgrade kernel-obs-buildUpgrade kernel-defaultUpgrade kernel-azure-baseUpgrade kernel-devel-azureUpgrade kernel-docsUpgrade kernel-default-extraUpgrade kernel-default-manUpgrade kernel-source-azure | Nov 13, 2019 | Nov 7, 2019 |
| Ubuntu | — | Upgrade linux-awsUpgrade linux-aws-fipsUpgrade linux-lts-xenialUpgrade linux-oem-osp1Upgrade linuxUpgrade linux-oemUpgrade linux-azure-fipsUpgrade linux-gke-4.15Upgrade linux-aws-hweUpgrade linux-raspi2Upgrade linux-fipsUpgrade linux-gcpUpgrade linux-kvmUpgrade linux-hweUpgrade linux-azureUpgrade linux-snapdragonUpgrade linux-oracle | Nov 19, 2024 | Nov 7, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Nov 7, 2019 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub