CVE-2015-7978

critical-risk
Published 2017-01-30

NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.

Do I need to act?

!
42.5% chance of exploitation in next 30 days
EPSS score — higher than 57% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp
Ntp

Affected Vendors

Ntp

References (48)

Third Party Advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.h...
Third Party Advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.ht...
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
Third Party Advisory http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
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/SecurityNotice#April_2016_NTP_4_2_8p7_Secur...
Third Party Advisory http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20...
Third Party Advisory http://www.debian.org/security/2016/dsa-3629
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory http://www.securityfocus.com/bid/81962
Third Party Advisory http://www.securitytracker.com/id/1034782
Third Party Advisory http://www.ubuntu.com/usn/USN-3096-1
Third Party Advisory https://bto.bluecoat.com/security-advisory/sa113
and 28 more references
72
/ 100
critical-risk
Severity 26/34 · High
Exploitability 17/34 · Moderate
Exposure 29/34 · Critical