Attacker Value
Unknown
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Exploitability
Unknown
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User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

CVE-2012-4502

Disclosure Date: November 05, 2013
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Description

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.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Vendors

  • tuxfamily

Products

  • chrony,
  • chrony 1.0,
  • chrony 1.1,
  • chrony 1.18,
  • chrony 1.19,
  • chrony 1.19.99.1,
  • chrony 1.19.99.2,
  • chrony 1.19.99.3,
  • chrony 1.20,
  • chrony 1.21,
  • chrony 1.23,
  • chrony 1.23.1,
  • chrony 1.24,
  • chrony 1.25,
  • chrony 1.26,
  • chrony 1.27,
  • chrony 1.28
Technical Analysis