CVE-2016-9042
An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected
02 Description
An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.91% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.8% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-06-04 20:00Z8 YR AGO
- Last updated
- 2024-09-17 03:53Z2 YR AGO
- Reserved
- 2016-10-26
- Assigning CNA
- talos
- Record state
- PUBLISHED
- Severity
- Low (CVSS 3.7)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 8467961d0ca638a7e3a660b24a51bb608116f010da426d17082cd41e056fb734
05 Affected products
06 References
- www.securitytracker.com1038123http://www.securitytracker.com/id/1038123
- security.freebsd.orgFreeBSD-SA-17:03https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc
- www.securitytracker.com1039427http://www.securitytracker.com/id/1039427
- www.securityfocus.com97046http://www.securityfocus.com/bid/97046
- www.ubuntu.comUSN-3349-1http://www.ubuntu.com/usn/USN-3349-1
- www.securityfocus.com20170412 FreeBSD Security Advisory FreeBSD-SA-17:03.ntphttp://www.securityfocus.com/archive/1/archive/1/540403/100/0/threaded
- seclists.org20171101 APPLE-SA-2017-10-31-8 Additional information for APPLE-SA-2017-09-25-1 macOS High Sierra 10.13http://seclists.org/fulldisclosure/2017/Nov/7
- www.securityfocus.com20170412 FreeBSD Security Advisory FreeBSD-SA-17:03.ntphttp://www.securityfocus.com/archive/1/540403/100/0/threaded
- lists.fedoraproject.orgFEDORA-2017-20d54b2782https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/
- seclists.org20170925 APPLE-SA-2017-09-25-1 macOS High Sierra 10.13http://seclists.org/fulldisclosure/2017/Sep/62
- www.securityfocus.com20170422 [slackware-security] ntp (SSA:2017-112-02)http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- www.talosintelligence.comhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260
- packetstormsecurity.comhttp://packetstormsecurity.com/files/142101/FreeBSD-Security-Advisory-FreeBSD-SA-17-03.ntp.html
- kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10201
- support.apple.comhttps://support.apple.com/kb/HT208144
- support.f5.comhttps://support.f5.com/csp/article/K39041624
- bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa147
- packetstormsecurity.comhttp://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
- us-cert.cisa.govhttps://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
07 Fixed in
Debian 11
- ntp Fixed in 1:4.2.8p10+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.