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CVE-2019-18805

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.

Risk Information

Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.57

Associated Vulnerability

VulnerabilityOS Platform
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-debuginfo-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-debugsource-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-devel-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-devel-debuginfo-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-extra-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-default-extra-debuginfo-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-devel-4.12.14-95.45.1.noarch.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-macros-4.12.14-95.45.1.noarch.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-source-4.12.14-95.45.1.noarch.rpmLinux
SUSE-SU-2019:3371-1(SUSE Linux Enterprise Desktop 12-SP4 ) kernel-syms-4.12.14-95.45.1.x86_64.rpmLinux
SUSE-SU-2020:0093-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-4.12.14-16.7.1.x86_64.rpmLinux
SUSE-SU-2020:0093-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-4.12.14-16.7.1.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234