Out-of-bounds read in BusyBox - CVE-2018-20679

Vulnerability identifier: #VU16958

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-20679

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in udhcp components (consumed by the DHCP server, client, and relay). A remote attacker can leak sensitive information from the stack by sending a crafted DHCP message.

BusyBox
busybox (Alpine package)
firefox-esr (Alpine package)
busybox
busybox-static
busybox-testsuite
busybox-warewulf3
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server for SAP Applications
openSUSE Leap

Update to version 1.30.0.

busybox (Alpine package) - update to 1.29.3-r10
busybox - addressed in versions 1.26.2-4.5.1, 1.34.1-4.9.1, 1.35.0-4.3.1, 1.35.0-150400.3.3.1
busybox-static - addressed in versions 1.26.2-4.5.1, 1.34.1-4.9.1, 1.35.0-150400.3.3.1
busybox-testsuite - update to 1.35.0-150400.3.3.1
busybox-warewulf3 - update to 1.35.0-150400.3.3.1

• https://bugs.busybox.net/show_bug.cgi?id=11506
• https://busybox.net/news.html
• https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c

• Information disclosure in BusyBox
• Out-of-bounds read in busybox (Alpine package)
• Out-of-bounds read in firefox-esr (Alpine package)
• SUSE update for busybox
• SUSE update for busybox
• SUSE update for busybox
• SUSE update for busybox
• SUSE update for busybox