CVE-2016-1567

Severity

68%

Complexity

86%

Confidentiality

106%

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."

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."

CVSS 3.0 Base Score 8.1. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P).

Overview

Type

Tuxfamily Chrony

First reported 9 years ago

2016-01-26 19:59:00

Last updated 8 years ago

2016-12-06 03:07:00

Affected Software

Tuxfamily Chrony 2.0

2.0

Tuxfamily Chrony 2.1

2.1

Tuxfamily Chrony 2.1.1

2.1.1

Tuxfamily Chrony 2.2

2.2

References

http://chrony.tuxfamily.org/news.html#_20_jan_2016_chrony_2_2_1_and_chrony_1_31_2_released

Vendor Advisory

FEDORA-2016-6f783d1768

FEDORA-2016-6a0b0ab775

Patch

http://www.talosintel.com/reports/TALOS-2016-0071/

Exploit

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