ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ntp | Ntp | * | 4.2.8 (including) |
| Ntp | Ntp | 4.3.0 (including) | 4.3.90 (excluding) |
| Ntp | Ntp | 4.2.8 (including) | 4.2.8 (including) |
| Ntp | Ntp | 4.2.8-p1 (including) | 4.2.8-p1 (including) |
| Ntp | Ntp | 4.2.8-p1-beta1 (including) | 4.2.8-p1-beta1 (including) |
| Ntp | Ntp | 4.2.8-p1-beta2 (including) | 4.2.8-p1-beta2 (including) |
| Ntp | Ntp | 4.2.8-p1-beta3 (including) | 4.2.8-p1-beta3 (including) |
| Ntp | Ntp | 4.2.8-p1-beta4 (including) | 4.2.8-p1-beta4 (including) |
| Ntp | Ntp | 4.2.8-p1-beta5 (including) | 4.2.8-p1-beta5 (including) |
| Ntp | Ntp | 4.2.8-p1-rc1 (including) | 4.2.8-p1-rc1 (including) |
| Ntp | Ntp | 4.2.8-p1-rc2 (including) | 4.2.8-p1-rc2 (including) |
| Ntp | Ntp | 4.2.8-p2 (including) | 4.2.8-p2 (including) |
| Ntp | Ntp | 4.2.8-p2-rc1 (including) | 4.2.8-p2-rc1 (including) |
| Ntp | Ntp | 4.2.8-p2-rc2 (including) | 4.2.8-p2-rc2 (including) |
| Ntp | Ntp | 4.2.8-p2-rc3 (including) | 4.2.8-p2-rc3 (including) |
| Ntp | Ntp | 4.2.8-p3 (including) | 4.2.8-p3 (including) |
| Ntp | Ntp | 4.2.8-p3-rc1 (including) | 4.2.8-p3-rc1 (including) |
| Ntp | Ntp | 4.2.8-p3-rc2 (including) | 4.2.8-p3-rc2 (including) |
| Ntp | Ntp | 4.2.8-p3-rc3 (including) | 4.2.8-p3-rc3 (including) |
| Ntp | Ntp | 4.2.8-p4 (including) | 4.2.8-p4 (including) |
| Ntp | Ntp | 4.2.8-p5 (including) | 4.2.8-p5 (including) |
| Red Hat Enterprise Linux 6 | RedHat | ntp-0:4.2.6p5-10.el6 | * |
| Red Hat Enterprise Linux 7 | RedHat | ntp-0:4.2.6p5-25.el7 | * |
| Ntp | Ubuntu | esm-infra-legacy/trusty | * |
| Ntp | Ubuntu | esm-infra/xenial | * |
| Ntp | Ubuntu | precise | * |
| Ntp | Ubuntu | trusty | * |
| Ntp | Ubuntu | trusty/esm | * |
| Ntp | Ubuntu | upstream | * |
| Ntp | Ubuntu | vivid | * |
| Ntp | Ubuntu | vivid/stable-phone-overlay | * |
| Ntp | Ubuntu | wily | * |
| Ntp | Ubuntu | xenial | * |
Potential Mitigations
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
- http://rhn.redhat.com/errata/RHSA-2016-0780.html
- http://rhn.redhat.com/errata/RHSA-2016-2583.html
- http://support.ntp.org/bin/view/Main/NtpBug2939
- http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
- http://www.debian.org/security/2016/dsa-3629
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/81815
- http://www.securitytracker.com/id/1034782
- http://www.ubuntu.com/usn/USN-3096-1
- https://bto.bluecoat.com/security-advisory/sa113
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171031-0001/
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
- https://www.kb.cert.org/vuls/id/718152
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
- http://rhn.redhat.com/errata/RHSA-2016-0780.html
- http://rhn.redhat.com/errata/RHSA-2016-2583.html
- http://support.ntp.org/bin/view/Main/NtpBug2939
- http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
- http://www.debian.org/security/2016/dsa-3629
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/81815
- http://www.securitytracker.com/id/1034782
- http://www.ubuntu.com/usn/USN-3096-1
- https://bto.bluecoat.com/security-advisory/sa113
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171031-0001/
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
- https://www.kb.cert.org/vuls/id/718152