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Ubuntu: USN-3935-1 (CVE-2018-20679): BusyBox vulnerabilities

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Ubuntu: USN-3935-1 (CVE-2018-20679): BusyBox vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
01/09/2019
Created
04/22/2019
Added
04/10/2019
Modified
03/02/2020

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.

Solution(s)

  • ubuntu-upgrade-busybox
  • ubuntu-upgrade-busybox-initramfs
  • ubuntu-upgrade-busybox-static
  • ubuntu-upgrade-udhcpc
  • ubuntu-upgrade-udhcpd

References

  • USN-3935-1
  • CVE-2018-20679

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