CVE-2015-8138

high-risk
Published 2017-01-30

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to bypass the origin timestamp validation via a packet with an origin timestamp set to zero.

Do I need to act?

~
1.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
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 (64)

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-2016-0063.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://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/bulletinapr2016-2952098.html
Third Party Advisory http://www.securityfocus.com/bid/81811
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 44 more references
54
/ 100
high-risk
Severity 21/34 · High
Exploitability 4/34 · Minimal
Exposure 29/34 · Critical