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CVE-2015-1821

nvd nist
Published: Apr 16, 2015Modified: May 6, 2026

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6.5
Vector
AV:N/AC:L/Au:S/C:P/I:P/A:P
Exploitability: 8.0 / Impact: 6.4
Source: NVD

Description

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.

Affected (2)

Tuxfamily
1 product
Chrony
Debian
1 product
Debian Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Chrony
Up to 1.31
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 7.0

Related CWEs

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (10)

Source: secalert@redhat.com
PatchVendor Advisory
Source: secalert@redhat.com
Source: secalert@redhat.com
Source: secalert@redhat.com
Source: secalert@redhat.com
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.