CVE-2015-1821

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:S/C:P/I:P/A:P
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 84%
VendorProductVersion
tuxfamilychrony
𝑥
≤ 1.31
debiandebian_linux
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
chrony
bullseye
4.0-8+deb11u2
fixed
bookworm
4.3-2+deb12u1
fixed
sid
4.6.1-1
fixed
trixie
4.6.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
chrony
cosmic
not-affected
bionic
not-affected
artful
not-affected
zesty
ignored
yakkety
ignored
xenial
not-affected
wily
ignored
vivid
ignored
utopic
ignored
trusty
Fixed 1.29-1ubuntu0.1
released
precise
ignored
lucid
ignored
Common Weakness Enumeration
References
http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html
http://www.debian.org/security/2015/dsa-3222
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/73955
https://security.gentoo.org/glsa/201507-01
http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html
http://www.debian.org/security/2015/dsa-3222
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/73955
https://security.gentoo.org/glsa/201507-01