NULL pointer dereference in Novell SUSE Manager
CVE-2016-4957
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.449 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.449 · newest: 0.449 · change: 0.000
Affected products
- Novell SUSE Manager — versions 2.1
- NTP — versions 4.2.8, 4.3.92
- Oracle Solaris — versions 10, 11.3
- 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
- SUSE OpenStack Cloud — versions 5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html (vendor-advisory, Mailing List, Third Party 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)
- bugs.ntp.org/3046 (Issue Tracking, Vendor Advisory)
- www.securitytracker.com/id/1036037 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (Third Party Advisory)
- www.kb.cert.org/vuls/id/321640 (US Government Resource, Third Party Advisory, third-party-advisory)
- support.ntp.org/bin/view/Main/SecurityNotice (Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-4957?
- CVE-2016-4957 is a high-severity vulnerability in Novell SUSE Manager, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2016-07-05.
- How severe is CVE-2016-4957?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-4957 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.