vulnerability
Ubuntu: (CVE-2019-18805): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Nov 7, 2019 | Nov 19, 2024 | Jun 26, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Nov 7, 2019
Added
Nov 19, 2024
Modified
Jun 26, 2025
Description
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.
Solution(s)
no-fix-ubuntu-packageubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-aws-hweubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gke-4-15ubuntu-upgrade-linux-hweubuntu-upgrade-linux-kvmubuntu-upgrade-linux-lts-xenialubuntu-upgrade-linux-oemubuntu-upgrade-linux-oem-osp1ubuntu-upgrade-linux-oracleubuntu-upgrade-linux-raspi2ubuntu-upgrade-linux-snapdragon
References
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