Bug 1550208 – CVE-2018-7182 ntp: buffer read overrun leads information leak in ctl_getitem()

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Bug 1550208 - (CVE-2018-7182) CVE-2018-7182 ntp: buffer read overrun leads information leak in ctl_getitem()

Summary:	CVE-2018-7182 ntp: buffer read overrun leads information leak in ctl_getitem()

Status:	NEW

Aliases:	CVE-2018-7182

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=moderate,public=20180227,repor...
Keywords:	Security

Depends On:	1550228 1550229
Blocks:	1550226
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Reported:	2018-02-28 14:25 EST by Pedro Sampaio
Modified:	2018-03-05 09:13 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	ntp 4.2.8p11
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Description Pedro Sampaio 2018-02-28 14:25:12 EST

ctl_getitem() is used by ntpd to process incoming mode 6 packets. A malicious mode 6 packet can be sent to an ntpd instance, and if the ntpd instance is from 4.2.8p6 thru 4.2.8p10, that will cause ctl_getitem() to read past the end of its buffer.

References:

http://support.ntp.org/bin/view/Main/NtpBug3412

Comment 1 Pedro Sampaio 2018-02-28 14:52:10 EST

Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1550228]

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