CVE-2015-5300
Description
The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds otherwise by responding to an unspecified number of requests from trusted sources, and leveraging a resulting denial of service (abort and restart).
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
Fedora Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 22 | Affected | — |
| 21 | Affected | — |
Red Hat Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 7.0 | Affected | — |
| 6.0 | Affected | — |
SUSE Affected 5 releases
| Version | Status | Fixed in |
|---|---|---|
| 42.1 | Affected | — |
| 13.2 | Affected | — |
| 12 | Affected | — |
| 11 | Affected | — |
| 10 | Affected | — |
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 15.10 | Affected | — |
| 15.04 | Affected | — |
| 14.04 | Affected | — |
| 12.04 | Affected | — |
Debian Mixed 3 releases
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Fixed | 1:4.2.8p4+dfsg-2 |
| 8.0 | Affected | — |
| 7.0 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| suse | linux_enterprise_debuginfo | 11 | |
| ntp | ntp | {"endIncluding":"4.2.8"} | |
References
- http://aix.software.ibm.com/aix/efixes/security/ntp_advisory5.asc
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170684.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.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-2015-1930.html
- http://seclists.org/bugtraq/2016/Feb/164
- http://support.ntp.org/bin/view/Main/NtpBug2956
- http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p5_Securit
- http://www.debian.org/security/2015/dsa-3388
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.securityfocus.com/bid/77312
- http://www.securitytracker.com/id/1034670
- http://www.ubuntu.com/usn/USN-2783-1
- https://bto.bluecoat.com/security-advisory/sa113
- https://bugzilla.redhat.com/show_bug.cgi?id=1271076
- https://ics-cert.us-cert.gov/advisories/ICSA-15-356-01
- https://security.netapp.com/advisory/ntap-20171004-0001/
CWEs
CWE-361
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.