CVE-2015-1821
Published: 16 April 2015
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.
From the Ubuntu Security Team
Miroslav Lichvár discovered a head-based buffer overflow in chrony. A remote attacker could use this vulnerability to cause a denial of service (crash) or execute arbitrary code.
Priority
Status
Package | Release | Status |
---|---|---|
chrony Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(3.1-5)
|
bionic |
Not vulnerable
(3.2-4ubuntu1)
|
|
cosmic |
Not vulnerable
(3.2-4ubuntu1)
|
|
lucid |
Ignored
(end of life)
|
|
trusty |
Released
(1.29-1ubuntu0.1)
|
|
upstream |
Released
(1.31.1)
|
|
utopic |
Ignored
(end of life)
|
|
vivid |
Ignored
(end of life)
|
|
wily |
Ignored
(end of life)
|
|
xenial |
Not vulnerable
(2.1.1-1)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
precise |
Ignored
(end of life)
|
|
Patches: upstream: http://git.tuxfamily.org/chrony/chrony.git/commit/?h=1.31-security&id=cf19042ecb656b8afec0cc4906e7dd3ea9266ac8 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1821
- http://git.tuxfamily.org/chrony/chrony.git/commit/?h=1.31-security&id=cf19042ecb656b8afec0cc4906e7dd3ea9266ac8
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-1821
- http://chrony.tuxfamily.org/News.html
- NVD
- Launchpad
- Debian