medium
6.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2009-0159: Buffer Overflow

First published: Tue Mar 17 2009(Updated: )

Apple Security Team reported a stack buffer overflow exists in the ntpq program. When the ntpq program is used to request peer information from a remote time server, a maliciously crafted response may lead to an unexpected application termination or arbitrary code execution. Problem exists in cookedprint() function in ntpq.c, when server-supplied numeric value is sprintf-ed to the buffer that is not large enough to hold string representation of the maximum possible value.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
NTP ntp=4.2.2
NTP ntp=4.2.0
NTP ntp=4.2.4p5
NTP ntp=4.2.4p4
NTP ntp=4.0.98
NTP ntp=4.0.72
NTP ntp=4.2.4p2
NTP ntp=4.0.90
NTP ntp=4.0.96
NTP ntp=4.0.93
NTP ntp<=4.2.4p7
NTP ntp=4.1.0
NTP ntp=4.2.4p1
NTP ntp=4.1.2
NTP ntp=4.0.99
NTP ntp=4.0.95
NTP ntp=4.2.2p3
NTP ntp=4.2.2p2
NTP ntp=4.0.92
NTP ntp=4.0.73
NTP ntp=4.2.4p3
NTP ntp=4.0.97
NTP ntp=4.2.4
NTP ntp=4.2.2p4
NTP ntp=4.0.91
NTP ntp=4.2.2p1
NTP ntp=4.2.4p0
NTP ntp=4.0.94
NTP ntp=4.2.4p6

Remedy

http://www.securityfocus.com/bid/34481

Remedy

https://support.ntp.org/bugs/show_bug.cgi?id=1144

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-0159?

    CVE-2009-0159 is considered a critical vulnerability due to the potential for arbitrary code execution.

  • How do I fix CVE-2009-0159?

    To fix CVE-2009-0159, update to a version of the NTP software that is not affected, generally versions after 4.2.4p7.

  • What systems are affected by CVE-2009-0159?

    CVE-2009-0159 affects multiple versions of NTP including 4.0.72, 4.0.98, and several others prior to the patched versions.

  • Can CVE-2009-0159 be exploited remotely?

    Yes, CVE-2009-0159 can be exploited remotely when the ntpq program interacts with a malicious time server.

  • What data could be compromised by CVE-2009-0159?

    CVE-2009-0159 could potentially allow attackers to execute arbitrary code and gain unauthorized access to affected systems.

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