CVE-2015-7855

MEDIUM
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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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1274264

http://www.securityfocus.com/bid/77283

http://support.ntp.org/bin/view/Main/NtpBug2922

https://security.gentoo.org/glsa/201607-15

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839

https://www.exploit-db.com/exploits/40840/

http://www.securitytracker.com/id/1033951

http://www.debian.org/security/2015/dsa-3388

https://security.netapp.com/advisory/ntap-20171004-0001/

https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf

https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11

Details

Source: MITRE

Published: 2017-08-07

Updated: 2021-04-19

Type: CWE-20

Risk Information

CVSS v2

Base Score: 4

Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*

Configuration 2

OR

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3

OR

cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:*

cpe:2.3:a:netapp:oncommand_performance_manager:-:*:*:*:*:*:*:*

cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:clustered_data_ontap:*:*

cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*

cpe:2.3:o:netapp:data_ontap:-:*:*:*:*:7-mode:*:*

Configuration 4

AND

OR

cpe:2.3:o:siemens:tim_4r-ie_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:siemens:tim_4r-ie:-:*:*:*:*:*:*:*

Configuration 5

AND

OR

cpe:2.3:o:siemens:tim_4r-ie_dnp3_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:siemens:tim_4r-ie_dnp3:-:*:*:*:*:*:*:*

Tenable Plugins

View all (26 total)

IDNameProductFamilySeverity
129259EulerOS 2.0 SP3 : ntp (EulerOS-SA-2019-2066)NessusHuawei Local Security Checks
critical
126847EulerOS 2.0 SP2 : ntp (EulerOS-SA-2019-1719)NessusHuawei Local Security Checks
critical
125010EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1557)NessusHuawei Local Security Checks
critical
123698EulerOS Virtualization 2.5.3 : ntp (EulerOS-SA-2019-1230)NessusHuawei Local Security Checks
medium
106497pfSense < 2.2.5 Multiple Vulnerabilities (SA-15_08)NessusFirewalls
high
102322AIX NTP v4 Advisory : ntp_advisory4.asc (IV79954) (IV79954)NessusAIX Local Security Checks
high
102321AIX NTP v3 Advisory : ntp_advisory4.asc (IV79942) (IV79943) (IV79944) (IV79945) (IV79946)NessusAIX Local Security Checks
high
93186SUSE SLES10 Security Update : ntp (SUSE-SU-2016:1912-1)NessusSuSE Local Security Checks
critical
92485GLSA-201607-15 : NTP: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
91403openSUSE Security Update : ntp (openSUSE-2016-649)NessusSuSE Local Security Checks
critical
91330F5 Networks BIG-IP : NTP vulnerability (K17515)NessusF5 Networks Local Security Checks
medium
91248SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1311-1)NessusSuSE Local Security Checks
critical
90991SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1247-1)NessusSuSE Local Security Checks
critical
88059AIX 5.3 TL 12 : ntp (IV79946) (deprecated)NessusAIX Local Security Checks
medium
88058AIX 7.2 TL 0 : ntp (IV79945) (deprecated)NessusAIX Local Security Checks
medium
88057AIX 7.1 TL 4 : ntp (IV79944) (deprecated)NessusAIX Local Security Checks
medium
88056AIX 7.1 TL 3 : ntp (IV79943) (deprecated)NessusAIX Local Security Checks
high
88055AIX 6.1 TL 9 : ntp (IV79942) (deprecated)NessusAIX Local Security Checks
medium
87010SUSE SLED11 / SLES11 Security Update : ntp (SUSE-SU-2015:2058-1)NessusSuSE Local Security Checks
critical
86964openSUSE Security Update : ntp (openSUSE-2015-767)NessusSuSE Local Security Checks
critical
86682Debian DSA-3388-1 : ntp - security updateNessusDebian Local Security Checks
critical
86664Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2015-302-03)NessusSlackware Local Security Checks
critical
86640Debian DLA-335-1 : ntp security updateNessusDebian Local Security Checks
critical
86631Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p4 Multiple VulnerabilitiesNessusMisc.
critical
86630Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : ntp vulnerabilities (USN-2783-1)NessusUbuntu Local Security Checks
critical
86519FreeBSD : ntp -- 13 low- and medium-severity vulnerabilities (c4a18a12-77fc-11e5-a687-206a8a720317)NessusFreeBSD Local Security Checks
critical