High severity · published Aug 7, 2017
CVE-2015-7691
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) via crafted packets containing…
7.5
CVSS
7.1%
EPSS
No
On KEV
Description
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) via crafted packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.1% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CD
Clustered Data Ontap · Netapp
All versions, or not specified · source: NVD
DO
Data Ontap · Netapp
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
7.0; 8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.3; 7.4; 7.5; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.3; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
LI
Linux · Oracle
6 · source: NVD
NT
Ntp · Ntp
4.2.0 before 4.2.8; 4.3.0 before 4.3.77; 4.2.8; 4.2.8; 4.2.8; 4.2.8; +13 more · source: NVD
OP
Oncommand Performance Manager · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-7691
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-7691
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0780.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2583.html
Vendor Advisory
http://support.ntp.org/bin/view/Main/NtpBug2899
Third Party Advisory
http://www.debian.org/security/2015/dsa-3388
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Third Party Advisory
http://www.securityfocus.com/bid/77274
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