GLSA 201701-05: BusyBox: Denial of Service
| Severity: | normal |
| Title: | BusyBox: Denial of Service |
| Date: | 01/01/2017 |
| Bugs: | |
| ID: | 201701-05 |
Synopsis
A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.Background
BusyBox is a set of tools for embedded systems and is a replacement for GNU Coreutils.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| sys-apps/busybox | < 1.25.1 | >= 1.25.1 | All supported architectures |
Description
The recv_and_process_client_pkt function in networking/ntpd.c in BusyBox allows remote attackers to cause a Denial of Service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a communication loop.
Impact
A remote attacker might send a specially crafted package to a machine running BusyBox ntpd, possibly resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.
Resolution
All BusyBox users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.25.1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.