Vulnerability in Novell SUSE Manager
CVE-2016-4955
ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.088 (95.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.088 · newest: 0.088 · change: 0.000
Affected products
- Novell SUSE Manager — versions 2.1
- NTP — versions 4.2.8
- Oracle Solaris — versions 10, 11.3
- Siemens Simatic Net Cp 443-1 Opc Ua
- Siemens Simatic Net Cp 443-1 Opc Ua Firmware
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.2
- SUSE Linux Enterprise Desktop — versions 12
- SUSE Linux Enterprise Server — versions 11, 12
- SUSE Manager Proxy — versions 2.1
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-3096-1 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.securityfocus.com/bid/91007 (VDB Entry, Third Party Advisory, vdb-entry)
- support.ntp.org/bin/view/Main/NtpBug3043 (Patch, Vendor Advisory)
- www.securitytracker.com/id/1036037 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-4955?
- CVE-2016-4955 is a medium-severity vulnerability in Novell SUSE Manager, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.9/10. Published 2016-07-05.
- How severe is CVE-2016-4955?
- Medium severity. CVSS v3 base score is 5.9 out of 10.