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Home CVE Database CVE-2015-7871

CVE-2015-7871

Description

Unauthenticated off-path attackers can force ntpd processes to peer with malicious time sources of the attacker??s choosing allowing the attacker to make arbitrary changes to system time. This attack leverages a logic error in ntpd??s handling of certain crypto-NAK packets. When a vulnerable ntpd receives an NTP symmetric active crypto-NAK packet, it will peer with the sender bypassing the authentication typically required to establish a peer association.

Priority: HIGH
CVSS v3: 9.8
Component: ntp
Publish Date: Oct 28, 2015
Related ID: --
CVSS v2: Critical
Modified Date: Oct 28, 2015

Find out more about CVE-2015-7871 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Not Vulnerable -- -- --
Wind River Linux 8 Fixed -- 8.0.0.0 --
Wind River Linux 9 Not Vulnerable -- -- --
Wind River Linux 7 Fixed -- 7.0.0.11 --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
Wind River Linux 6 Fixed -- 6.0.0.26 --
Wind River Linux LTS 23 Not Vulnerable -- -- --
VxWorks
VxWorks 7 Fixed -- ntp-1.2.0.0 --
VxWorks 6.9 Fixed -- 6.9.4.7 --
Helix Virtualization Platform Cert Edition
Helix Virtualization Platform Cert Edition Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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