CVE-2014-9751
Description
The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attackers to spoof restricted packets, and read or write to the runtime state, by leveraging the ability to reach the ntpd machine's network interface with a packet from the ::1 address.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Red Hat Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 6.0 | Affected | — |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Fixed | 1:4.2.6.p5+dfsg-4 |
| 9.0 | Affected | — |
| 8.0 | Affected | — |
| 7.0 | Affected | — |
Linux kernel Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| - | Not affected | — |
macOS Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| - | Not affected | — |
References
- https://www.suse.com/security/cve/CVE-2014-9751.html
- http://bugs.ntp.org/show_bug.cgi?id=2672
- http://rhn.redhat.com/errata/RHSA-2015-1459.html
- http://support.ntp.org/bin/view/Main/SecurityNotice#December_2014_NTP_Security_Vulne
- http://www.debian.org/security/2015/dsa-3388
- http://www.kb.cert.org/vuls/id/852879
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/72584
- https://bugzilla.redhat.com/show_bug.cgi?id=1184572
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us
- https://security-tracker.debian.org/tracker/CVE-2014-9751
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.