ALT-PU-2015-2089-1

Package update chrony in branch sisyphus

Version2.2-alt1

Published2015-12-10

Max severityMEDIUM

Severity:

Closed issues (3)

MEDIUM6.5

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.

Published: 2015-04-16Modified: 2025-04-12

CVSS 2.0MEDIUM 6.5

CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P

References

MEDIUM6.5

chrony before 1.31.1 does not initialize the last "next" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.

Published: 2015-04-16Modified: 2025-04-12

CVSS 2.0MEDIUM 6.5

CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P

References

MEDIUM6.5

chrony before 1.31.1 does not properly protect state variables in authenticated symmetric NTP associations, which allows remote attackers with knowledge of NTP peering to cause a denial of service (inability to synchronize) via random timestamps in crafted NTP data packets.

Published: 2019-12-09Modified: 2024-11-21

CVSS 2.0MEDIUM 4.0

CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References