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.
CPE | Name | Operator | Version |
---|---|---|---|
busybox | lt | 1.30.0 | |
ubuntu_linux | eq | 16.04 | |
ubuntu_linux | eq | 14.04 | |
ubuntu_linux | eq | 18.04 | |
ubuntu_linux | eq | 18.10 |
packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
seclists.org/fulldisclosure/2019/Sep/7
bugs.busybox.net/show_bug.cgi?id=11506
busybox.net/news.html
git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c
seclists.org/bugtraq/2019/Sep/7
usn.ubuntu.com/3935-1/