Unrated severityOSV Advisory· Published Jan 9, 2019· Updated Jun 9, 2025
CVE-2018-20679
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
49- osv-coords47 versionspkg:rpm/opensuse/busybox&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/busybox&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/busybox&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/busybox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/busybox-static&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/busybox-static&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/virtualbox&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/virtualbox-kmp&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/busybox&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/busybox&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/busybox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/busybox&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/busybox&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/busybox&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/busybox&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/busybox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/busybox-static&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/busybox-static&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1
< 1.26.2-lp152.5.3.1+ 46 more
- (no CPE)range: < 1.26.2-lp152.5.3.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.35.0-150400.3.3.1
- (no CPE)range: < 1.35.0-1.1
- (no CPE)range: < 1.26.2-lp152.5.3.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 6.1.34-lp153.2.27.2
- (no CPE)range: < 6.1.34-lp153.2.27.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.35.0-150400.3.3.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.34.1-4.9.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.35.0-4.3.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
- (no CPE)range: < 1.26.2-4.5.1
Patches
Vulnerability mechanics
References
7- usn.ubuntu.com/3935-1/mitrevendor-advisoryx_refsource_UBUNTU
- packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlmitrex_refsource_MISC
- seclists.org/fulldisclosure/2019/Sep/7mitremailing-listx_refsource_FULLDISC
- bugs.busybox.net/show_bug.cgimitrex_refsource_MISC
- busybox.net/news.htmlmitrex_refsource_MISC
- git.busybox.net/busybox/commit/mitrex_refsource_MISC
- seclists.org/bugtraq/2019/Sep/7mitremailing-listx_refsource_BUGTRAQ
News mentions
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