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 python-perfUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-libsUpgrade kernel-headersUpgrade kernel-toolsUpgrade perfUpgrade kernel-develUpgrade kernel-debuginfo | Apr 16, 2020 | Nov 7, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade python-perfUpgrade kernel-tools-libsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-develUpgrade kernelUpgrade kernel-toolsUpgrade perfUpgrade kernel-headersUpgrade kernel-source | 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-docsUpgrade kernel-source-azureUpgrade kernel-default-manUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-azure-baseUpgrade kernel-default | Nov 13, 2019 | Nov 7, 2019 |
| Ubuntu | — | Upgrade linux-lts-xenialUpgrade linux-aws-fipsUpgrade linuxUpgrade linux-azure-fipsUpgrade linux-oem-osp1Upgrade linux-oemUpgrade linux-aws-hweUpgrade linux-gke-4.15Upgrade linux-awsUpgrade linux-kvmUpgrade linux-snapdragonUpgrade linux-hweUpgrade linux-fipsUpgrade linux-gcpUpgrade linux-oracleUpgrade linux-raspi2Upgrade linux-azure | 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 |
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