CVE-2019-18805 - CVE House
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Status published Critical CVE-2019-18805

An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

linux kernel, leap, enterprise linux, active iq unified manager, data availability services, e-series santricity os controller, hci management node, solidfire, steelstore cloud integrated storage, hci compute node, hci storage node, fabric operating system, aff a700s firmware, fas8300 firmware, fas8700 firmware, aff a400 firmware, h610s firmware
Vulnerable Versions:
4.4, 4.9, 4.14, 4.19, 5.0, 5.1, 15.0, 15.1, 7.0, 11.0.0

Timeline

Official Publish: November 7th, 2019
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.