CVE-2015-7850
First published: Thu Oct 22 2015(Updated: )
ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (infinite loop or crash) by pointing the key file at the log file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ntp | <4.2.8 | 4.2.8 |
| 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 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| NetApp OnCommand Balance | ||
| NetApp OnCommand Performance Manager | ||
| NetApp OnCommand Unified Manager | ||
| IBM Data ONTAP | ||
| IBM Data ONTAP |
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Reference Links
- http://talosintel.com/reports/TALOS-2015-0055/
- http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_Security_Vulner
- https://github.com/ntp-project/ntp/commit/bb928ef08eec020ef6008f3a140702ccc0536b8e
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1296167
- https://bugzilla.redhat.com/show_bug.cgi?id=1274258
- http://support.ntp.org/bin/view/Main/NtpBug2917
- http://www.debian.org/security/2015/dsa-3388
- http://www.securityfocus.com/bid/77279
- http://www.securitytracker.com/id/1033951
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171004-0001/
Frequently Asked Questions
What is the severity of CVE-2015-7850?
CVE-2015-7850 is classified as a denial of service vulnerability that can cause infinite loops or crashes in the affected NTP versions.
How do I fix CVE-2015-7850?
To fix CVE-2015-7850, upgrade to NTP version 4.2.8p4 or later, or 4.3.77 or later.
What software is affected by CVE-2015-7850?
CVE-2015-7850 affects NTP versions 4.2.x before 4.2.8p4 and 4.3.x before 4.3.77.
Can CVE-2015-7850 be exploited by unauthenticated users?
No, CVE-2015-7850 can only be exploited by remote authenticated users.
What types of systems are impacted by CVE-2015-7850?
CVE-2015-7850 impacts various systems using affected versions of the NTP daemon, such as those on Red Hat and Debian Linux.
- agent/type
- agent/first-publish-date
- agent/weakness
- agent/author
- agent/severity
- agent/references
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2015-7850
- agent/software-canonical-lookup
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/redhat
- vendor/ntp
- canonical/ntp
- version/ntp/4.2.0
- version/ntp/4.3.0
- version/ntp/4.2.8
- version/ntp/4.2.8-p1
- 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
- version/ntp/4.2.8-p3-rc1
- version/ntp/4.2.8-p3-rc2
- version/ntp/4.2.8-p3-rc3
- vendor/debian
- canonical/debian linux
- version/debian linux/7.0
- version/debian linux/8.0
- version/debian linux/9.0
- vendor/netapp
- canonical/netapp oncommand balance
- canonical/netapp oncommand performance manager
- canonical/netapp oncommand unified manager
- canonical/ibm data ontap