Vulnerability Description
The decodenetnum 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 (assertion failure) via a 6 or mode 7 packet containing a long data value.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ntp | Ntp | >= 4.2.0, < 4.2.8 |
| Debian | Debian Linux | 7.0 |
| Netapp | Oncommand Balance | - |
| Netapp | Oncommand Performance Manager | - |
| Netapp | Oncommand Unified Manager | - |
| Netapp | Clustered Data Ontap | - |
| Netapp | Data Ontap | - |
| Siemens | Tim 4R-Ie Firmware | All versions |
| Siemens | Tim 4R-Ie | - |
| Siemens | Tim 4R-Ie Dnp3 Firmware | All versions |
| Siemens | Tim 4R-Ie Dnp3 | - |
Related Weaknesses (CWE)
References
- http://support.ntp.org/bin/view/Main/NtpBug2922PatchVendor Advisory
- http://www.debian.org/security/2015/dsa-3388Third Party Advisory
- http://www.securityfocus.com/bid/77283Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1033951Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1274264Issue TrackingThird Party AdvisoryVDB Entry
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-cThird Party AdvisoryVDB Entry
- https://security.gentoo.org/glsa/201607-15Third Party AdvisoryVDB Entry
- https://security.netapp.com/advisory/ntap-20171004-0001/Third Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11Third Party AdvisoryUS Government Resource
- https://www.exploit-db.com/exploits/40840/ExploitThird Party AdvisoryVDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug2922PatchVendor Advisory
- http://www.debian.org/security/2015/dsa-3388Third Party Advisory
- http://www.securityfocus.com/bid/77283Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1033951Third Party AdvisoryVDB Entry
FAQ
What is CVE-2015-7855?
CVE-2015-7855 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The decodenetnum 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 (assertion failure) via a 6 or mode 7 packet containing a lo...
How severe is CVE-2015-7855?
CVE-2015-7855 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-7855?
Check the references section above for vendor advisories and patch information. Affected products include: Ntp Ntp, Debian Debian Linux, Netapp Oncommand Balance, Netapp Oncommand Performance Manager, Netapp Oncommand Unified Manager.