CVE-2015-7691
The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted packets containing particular autokey operations.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 7.10% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- ntp/ntp · oracle/linux · debian/debian linux · netapp/oncommand performance manager · netapp/oncommand unified manager · netapp/clustered data ontap · netapp/data ontap · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
References
- http://rhn.redhat.com/errata/RHSA-2016-0780.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2583.htmlThird Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug2899Vendor Advisory
- http://www.debian.org/security/2015/dsa-3388Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
- http://www.securityfocus.com/bid/77274Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033951Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1274254Issue Tracking, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201607-15Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20171004-0001/Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0780.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2583.htmlThird Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug2899Vendor Advisory
- http://www.debian.org/security/2015/dsa-3388Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
- http://www.securityfocus.com/bid/77274Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033951Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1274254Issue Tracking, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201607-15Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20171004-0001/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.