CVE-2015-1821

high

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

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2015-04-16

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High