CVE-2015-1821

chrony < 1.31 - Authenticated Heap-based Buffer Overflow via NTP or cmdmon Subnet Configuration

Title source: llm

Description

Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.

References (5)

Core 5

Core References

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2015/dsa-3222

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/73955

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/201507-01

Patch, Vendor Advisory mailing-list x_refsource_mlist

http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html

Vendor Advisory x_refsource_confirm

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Scores

EPSS 0.0344

EPSS Percentile 87.6%

Details

CWE

CWE-119

Status published

Products (2)

debian/debian_linux 7.0

tuxfamily/chrony < 1.31

Published Apr 16, 2015

Tracked Since Feb 18, 2026