vulnwire
8.1high

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…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
8.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.0%
percentile 88%
Public exploits
0
none known

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."

Exploit prediction (EPSS)

3.03% probability of exploitation in the next 30 days, higher than 88% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

  • talosintel.com /reports/TALOS-2016-0071/ · x_refsource_MISC, x_transferred
  • lists.fedoraproject.org /pipermail/package-announce/2016-February/176559.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • lists.fedoraproject.org /pipermail/package-announce/2016-January/175969.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • chrony.tuxfamily.org /news.html#_20_jan_2016_chrony_2_2_1_and_chrony_1_31_2_released · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.