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CVE
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CVE-2015-7855Date: (C)2017-08-09   (M)2024-02-01


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 and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.5CVSS Score : 4.0
Exploit Score: 2.8Exploit Score: 8.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: SINGLE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
SECTRACK-1033951
EXPLOIT-DB-40840
BID-77283
DSA-3388
GLSA-201607-15
http://support.ntp.org/bin/view/Main/NtpBug2922
https://bugzilla.redhat.com/show_bug.cgi?id=1274264
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839
https://security.netapp.com/advisory/ntap-20171004-0001/
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11

CPE    7
cpe:/o:debian:debian_linux:9.0
cpe:/a:ntp:ntp
cpe:/o:debian:debian_linux:7.0
cpe:/o:debian:debian_linux:8.0
...
CWE    1
CWE-20
OVAL    6
oval:org.secpod.oval:def:89045466
oval:org.secpod.oval:def:31656
oval:org.secpod.oval:def:52613
oval:org.secpod.oval:def:602264
...

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