CVE-2016-1567

chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
Affected Products (NVD)
VendorProductVersion
tuxfamilychrony
𝑥
≤ 1.31.1
tuxfamilychrony
2.0
tuxfamilychrony
2.1
tuxfamilychrony
2.1.1
tuxfamilychrony
2.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
chrony
bookworm
4.3-2+deb12u1
fixed
bullseye
4.0-8+deb11u2
fixed
sid
4.6.1-1
fixed
trixie
4.6.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
chrony
artful
not-affected
bionic
not-affected
cosmic
not-affected
precise
ignored
trusty
Fixed 1.29-1ubuntu0.1
released
vivid
ignored
wily
ignored
xenial
Fixed 2.1.1-1ubuntu0.1
released
yakkety
ignored
zesty
ignored
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
chrony
suse enterprise desktop 15 SP2
3.2-9.12.1
fixed
suse enterprise desktop 15 SP3
3.2-9.18.1
fixed
suse enterprise desktop 15 SP4
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP5
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP6
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise sap 15 SP2
3.2-9.12.1
fixed
suse enterprise sap 15 SP3
3.2-9.18.1
fixed
suse enterprise sap 15 SP4
4.1-150400.19.4
fixed
suse enterprise sap 15 SP5
4.1-150400.19.4
fixed
suse enterprise sap 15 SP6
4.1-150400.19.4
fixed
suse enterprise sap 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise server 15 SP2
3.2-9.12.1
fixed
suse enterprise server 15 SP3
3.2-9.18.1
fixed
suse enterprise server 15 SP4
4.1-150400.19.4
fixed
suse enterprise server 15 SP5
4.1-150400.19.4
fixed
suse enterprise server 15 SP6
4.1-150400.19.4
fixed
suse enterprise server 15 SP7
4.1-150400.21.5.7
fixed
chrony-pool-empty
suse enterprise desktop 15 SP2
3.2-9.12.1
fixed
suse enterprise desktop 15 SP3
3.2-9.18.1
fixed
suse enterprise desktop 15 SP4
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP5
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP6
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise sap 15 SP2
3.2-9.12.1
fixed
suse enterprise sap 15 SP3
3.2-9.18.1
fixed
suse enterprise sap 15 SP4
4.1-150400.19.4
fixed
suse enterprise sap 15 SP5
4.1-150400.19.4
fixed
suse enterprise sap 15 SP6
4.1-150400.19.4
fixed
suse enterprise sap 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise server 15 SP2
3.2-9.12.1
fixed
suse enterprise server 15 SP3
3.2-9.18.1
fixed
suse enterprise server 15 SP4
4.1-150400.19.4
fixed
suse enterprise server 15 SP5
4.1-150400.19.4
fixed
suse enterprise server 15 SP6
4.1-150400.19.4
fixed
suse enterprise server 15 SP7
4.1-150400.21.5.7
fixed
chrony-pool-suse
suse enterprise desktop 15 SP2
3.2-9.12.1
fixed
suse enterprise desktop 15 SP3
3.2-9.18.1
fixed
suse enterprise desktop 15 SP4
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP5
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP6
4.1-150400.19.4
fixed
suse enterprise desktop 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise sap 15 SP2
3.2-9.12.1
fixed
suse enterprise sap 15 SP3
3.2-9.18.1
fixed
suse enterprise sap 15 SP4
4.1-150400.19.4
fixed
suse enterprise sap 15 SP5
4.1-150400.19.4
fixed
suse enterprise sap 15 SP6
4.1-150400.19.4
fixed
suse enterprise sap 15 SP7
4.1-150400.21.5.7
fixed
suse enterprise server 15 SP2
3.2-9.12.1
fixed
suse enterprise server 15 SP3
3.2-9.18.1
fixed
suse enterprise server 15 SP4
4.1-150400.19.4
fixed
suse enterprise server 15 SP5
4.1-150400.19.4
fixed
suse enterprise server 15 SP6
4.1-150400.19.4
fixed
suse enterprise server 15 SP7
4.1-150400.21.5.7
fixed
Common Weakness Enumeration
References
http://chrony.tuxfamily.org/news.html#_20_jan_2016_chrony_2_2_1_and_chrony_1_31_2_released
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176559.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175969.html
http://www.talosintel.com/reports/TALOS-2016-0071/
http://chrony.tuxfamily.org/news.html#_20_jan_2016_chrony_2_2_1_and_chrony_1_31_2_released
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176559.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175969.html
http://www.talosintel.com/reports/TALOS-2016-0071/