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CVE-2018-20679

Description

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

Risk Information

Base Score
7.5
MODERATE
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
9.589

Associated Vulnerability

VulnerabilityOS Platform
Tiny utilities for small and embedded systems (USN-3935-1) udhcpc_1.27.2-2ubuntu3.2_i386.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpc_1.27.2-2ubuntu3.2_amd64.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpd_1.27.2-2ubuntu3.2_i386.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpd_1.27.2-2ubuntu3.2_amd64.debLinux
SUSE-SU-2022:4253-1(SUSE Linux Enterprise Server 12-SP5 ) busybox-1.35.0-4.3.1.x86_64.rpmLinux
SUSE-SU-2022:3959-1(SUSE Linux Enterprise Module for Basesystem 15-SP4 ) busybox-static-1.35.0-150400.3.3.1.x86_64.rpmLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpc_1.27.2-2ubuntu3.2_i386.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpc_1.27.2-2ubuntu3.2_amd64.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpd_1.27.2-2ubuntu3.2_i386.debLinux
Tiny utilities for small and embedded systems (USN-3935-1) udhcpd_1.27.2-2ubuntu3.2_amd64.debLinux

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