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 udhcpgetoption() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-dbgsym" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-initramfs" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-initramfs-dbgsym" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-static" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-static-dbgsym" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-syslogd" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-udeb" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "busybox-udeb-dbgsym" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "udhcpc" }, { "binary_version": "1:1.21.0-1ubuntu1.4", "binary_name": "udhcpd" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-dbgsym" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-initramfs" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-initramfs-dbgsym" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-static" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-static-dbgsym" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-syslogd" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-udeb" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "busybox-udeb-dbgsym" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "udhcpc" }, { "binary_version": "1:1.22.0-15ubuntu1.4", "binary_name": "udhcpd" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-dbgsym" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-initramfs" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-initramfs-dbgsym" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-static" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-static-dbgsym" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-syslogd" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "busybox-udeb" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "udhcpc" }, { "binary_version": "1:1.27.2-2ubuntu3.2", "binary_name": "udhcpd" } ] }