Bug 38245

Summary:	ntp: Multiple issues (3.2)
Product:	UCS	Reporter:	Arvid Requate <requate>
Component:	Security updates	Assignee:	Janek Walkenhorst <walkenhorst>
Status:	CLOSED FIXED	QA Contact:	Philipp Hahn <hahn>
Severity:	normal
Priority:	P5	CC:	gohmann, hahn
Version:	UCS 3.2	Flags:	requate: Patch_Available+
Target Milestone:	UCS 3.2-6-errata
Hardware:	Other
OS:	Linux
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Description Arvid Requate

2015-04-13 14:36:14 CEST

Man-in-the-middle attackers may spoof packets by omitting the MAC because the symmetric-key feature in the receive function in ntp_proto.c requires a correct MAC only if the MAC field has a nonzero length (CVE-2015-1798)

Man-in-the-middle attackers may cause a denial of service (synchronization loss) by spoofing the source IP address of a peer because the symmetric-key feature in the receive function in ntp_proto.c performs state-variable updates upon receiving certain invalid packets (CVE-2015-1799)

Comment 1 Arvid Requate

2015-05-06 16:40:40 CEST

Fixed in upstream Debian package version 1:4.2.6.p2+dfsg-1+deb6u3

Comment 2 Janek Walkenhorst

2015-06-05 16:04:47 CEST

Tests (i386): OK
Advisory: 2015-06-05-ntp.yaml

Comment 3 Philipp Hahn

2015-06-12 15:06:12 CEST

r61218 | Bug #38245 ntp: Fix YAML
 Fix wrong bug reference: 3[6→8]245

Comment 4 Philipp Hahn

2015-06-30 18:54:21 CEST

OK: ucr set timeserver{=0,2=2,3=3}.debian.pool.ntp.org
OK: ntpq -p
OK: ntpdate 10.200.17.24 <-> 10.200.17.25
OK: i386 amd64

OK: /usr/share/doc/ntp/changelog.Debian.gz
OK: 1:4.2.6.p2+dfsg-1+deb6u3
OK: CVE-2015-1798
OK: CVE-2015-1799

FIXED: 2015-06-05-ntp.yaml → r61585
OK: errata-announce -V 2015-06-05-ntp.yaml

Comment 5 Janek Walkenhorst

2015-07-16 15:11:23 CEST

<http://errata.univention.de/ucs/3.2/343.html>