CVE-2015-7855

MEDIUM

Description

The decodenetnum 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 (assertion failure) via a 6 or mode 7 packet containing a long data value.

References

http://support.ntp.org/bin/view/Main/NtpBug2922

http://www.debian.org/security/2015/dsa-3388

http://www.securityfocus.com/bid/77283

http://www.securitytracker.com/id/1033951

https://bugzilla.redhat.com/show_bug.cgi?id=1274264

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839

https://security.gentoo.org/glsa/201607-15

https://security.netapp.com/advisory/ntap-20171004-0001/

https://www.exploit-db.com/exploits/40840/

Details

Source: MITRE

Published: 2017-08-07

Updated: 2017-11-10

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4

Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM