CVE-2016-6301

NameCVE-2016-6301
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)
Debian Bugs833442

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
busybox (PTS)jessie1:1.22.0-9+deb8u1vulnerable
jessie (security)1:1.22.0-9+deb8u4vulnerable
stretch1:1.22.0-19vulnerable
buster, sid1:1.27.2-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
busyboxsource(unstable)1:1.27.2-1unimportant833442

Notes

NTP server not enabled by default in debian/config/pkg/* via CONFIG_NTPD
Fixed by: https://git.busybox.net/busybox/commit/?id=150dc7a2b483b8338a3e185c478b4b23ee884e71

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