CVE-2015-7692: Input Validation
First published: Mon Aug 07 2017(Updated: )
The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NTP | >=4.2.0<4.2.8 | |
| NTP | >=4.3.0<4.3.77 | |
| NTP | =4.2.8 | |
| NTP | =4.2.8-p1 | |
| NTP | =4.2.8-p1-beta1 | |
| NTP | =4.2.8-p1-beta2 | |
| NTP | =4.2.8-p1-beta3 | |
| NTP | =4.2.8-p1-beta4 | |
| NTP | =4.2.8-p1-beta5 | |
| NTP | =4.2.8-p1-rc1 | |
| NTP | =4.2.8-p1-rc2 | |
| NTP | =4.2.8-p2 | |
| NTP | =4.2.8-p2-rc1 | |
| NTP | =4.2.8-p2-rc2 | |
| NTP | =4.2.8-p2-rc3 | |
| NTP | =4.2.8-p3 | |
| NTP | =4.2.8-p3-rc1 | |
| NTP | =4.2.8-p3-rc2 | |
| NTP | =4.2.8-p3-rc3 | |
| Oracle Linux | =6 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| NetApp OnCommand Performance Manager | ||
| NetApp OnCommand Unified Manager | ||
| IBM Data ONTAP | ||
| IBM Data ONTAP | ||
| Red Hat Enterprise Linux Desktop | =6.0 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Server | =7.3 | |
| Red Hat Enterprise Linux Server | =7.4 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.7 | |
| Red Hat Enterprise Linux Server | =7.3 | |
| Red Hat Enterprise Linux Server | =7.4 | |
| Red Hat Enterprise Linux Server | =7.5 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.7 | |
| Red Hat Enterprise Linux Server | =7.3 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.7 | |
| Red Hat Enterprise Linux Workstation | =6.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2016-0780.html
- http://rhn.redhat.com/errata/RHSA-2016-2583.html
- http://support.ntp.org/bin/view/Main/NtpBug2899
- http://www.debian.org/security/2015/dsa-3388
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/77285
- http://www.securitytracker.com/id/1033951
- https://bugzilla.redhat.com/show_bug.cgi?id=1274254
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171004-0001/
Frequently Asked Questions
What is the severity of CVE-2015-7692?
CVE-2015-7692 is categorized as a denial of service vulnerability that can lead to a crash of the NTP service.
How do I fix CVE-2015-7692?
To remediate CVE-2015-7692, update NTP to version 4.2.8p4 or later for 4.2.x, or to version 4.3.77 or later for 4.3.x.
What systems are affected by CVE-2015-7692?
CVE-2015-7692 affects NTP versions 4.2.0 to 4.2.8p3 and versions 4.3.0 to 4.3.76.
What type of vulnerability is CVE-2015-7692?
CVE-2015-7692 is a denial of service vulnerability that allows remote attackers to crash the NTP service.
Is CVE-2015-7692 related to any other vulnerabilities?
CVE-2015-7692 is related to CVE-2014-9750, as it exists due to an incomplete fix for that vulnerability.
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- version/ntp/4.2.8-p1-beta1
- version/ntp/4.2.8-p1-beta2
- version/ntp/4.2.8-p1-beta3
- version/ntp/4.2.8-p1-beta4
- version/ntp/4.2.8-p1-beta5
- version/ntp/4.2.8-p1-rc1
- version/ntp/4.2.8-p1-rc2
- version/ntp/4.2.8-p2
- version/ntp/4.2.8-p2-rc1
- version/ntp/4.2.8-p2-rc2
- version/ntp/4.2.8-p2-rc3
- version/ntp/4.2.8-p3
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