Vulnerability Details : CVE-2012-4502

Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.
Published 2013-11-05 21:55:08
Updated 2013-11-06 19:25:15
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Products affected by CVE-2012-4502

Exploit prediction scoring system (EPSS) score for CVE-2012-4502

EPSS FAQ
1.32%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2012-4502

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST

CWE ids for CVE-2012-4502

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2012-4502

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