CVE-2015-7848

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General

Score:5.0/10.0
Severity:Medium
Category:Numeric Error
Exploit:Available

Impact Metrics

Confidentiality:None
Integrity:None
Availability:Partial

Exploitability Metrics

Access Vector:Network
Access Complexity:Low
Authentication:None

Relative vulnerabilities

CVE-2015-1798, CVE-2015-1799, CVE-2015-5194, CVE-2015-5219, CVE-2015-5300, CVE-2015-7691, CVE-2015-7692, CVE-2015-7701, CVE-2015-7702, CVE-2015-7703, CVE-2015-7704, CVE-2015-7705, CVE-2015-7849, CVE-2015-7850, CVE-2015-7851, CVE-2015-7852, CVE-2015-7853, CVE-2015-7854, CVE-2015-7855, CVE-2015-7871, CVE-2015-7973, CVE-2015-7974, CVE-2015-7975, CVE-2015-7976, CVE-2015-7977, CVE-2015-7978, CVE-2015-7979, CVE-2015-8138, CVE-2015-8139, CVE-2015-8140, CVE-2015-8158, CVE-2016-1547, CVE-2016-1548, CVE-2016-1549, CVE-2016-1550, CVE-2016-1551, CVE-2016-2516, CVE-2016-2517, CVE-2016-2518, CVE-2016-2519, CVE-2016-4953, CVE-2016-4954, CVE-2016-4955, CVE-2016-4956, CVE-2016-4957

Published on 06/01/17 - Updated on 10/11/17

Description

An integer overflow can occur in NTP-dev.4.3.70 leading to an out-of-bounds memory copy operation when processing a specially crafted private mode packet. The crafted packet needs to have the correct message authentication code and a valid timestamp. When processed by the NTP daemon, it leads to an immediate crash.

Category: Numeric Error

CWE-190 (Integer Overflow or Wraparound)
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

Security Notices

US National Vulnerability DatabaseCVE-2015-7848
Agence Nationale de la Sécurité des Systèmes d'Information CERTFR-2015-AVI-449
Arch Linux ASA-201510-14
Renater 2015/VULN222, 2015/VULN224
SUSE SUSE-SU-2015:2058, SUSE-SU-2016:1247, SUSE-SU-2016:1311, SUSE-SU-2016:1912

Exploits

SecurityFocusBID-77275

Relative technologies

VendorProduct
ntpntp-dev

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