Bug 38379 – dnsmasq: Denial of service (4.1)

Bug 38379 - dnsmasq: Denial of service (4.1)


Summary:	dnsmasq: Denial of service (4.1)

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Security updates
Version:	UCS 4.1
Hardware:	Other Linux

Importance:	P2 normal (vote)
Target Milestone:	UCS 4.1-4-errata
Assigned To:	Arvid Requate
QA Contact:	Felix Botner

URL:
Keywords:

Depends on:	45617
Blocks:
	Show dependency tree / graph

Reported:	2015-04-28 16:09 CEST by Arvid Requate
Modified:	2017-11-08 16:06 CET (History)
CC List:	1 user (show)

See Also:
What kind of report is it?:	Security Issue
What type of bug is this?:	---
Who will be affected by this bug?:	---
How will those affected feel about the bug?:	---
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Bug group (optional):	Security
Max CVSS v3 score:	9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Flags:	requate: Patch_Available+

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Description Arvid Requate

2015-04-28 16:09:30 CEST

Crash on receipt of certain malformed DNS requests (CVE-2015-3294)

Patch in upstream 2.73rc4:
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=ad4a8ff7d9097008d7623df8543df435bfddeac8

Comment 1 Arvid Requate

2015-05-06 11:35:09 CEST

Fix available upstream in Debian package version 2.62-3+deb7u2

Comment 2 Arvid Requate

2015-05-11 12:29:57 CEST

Regression fixed in 2.62-3+deb7u3

Comment 3 Arvid Requate

2017-10-30 17:36:17 CET

2.62-3+deb7u4 fixes:

* DNS heap buffer overflow (CVE-2017-14491)
* DHCPv6 RA heap overflow (CVE-2017-14492)
* Infoleak handling DHCPv6 forwarded requests (CVE-2017-14494)

Comment 4 Arvid Requate

2017-10-30 17:51:51 CET

Advisory: dnsmasq.yaml

Comment 5 Felix Botner

2017-11-01 16:47:51 CET

OK - dnsmasq
dnsmasq -d -q
dnsmasq: gestartet, Version 2.62, Cachegröße 150
dnsmasq: Übersetzungsoptionen: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack
dnsmasq: lese /etc/resolv.conf
dnsmasq: Benutze Namensserver 192.168.0.3#53
dnsmasq: ignoriere Namensserver 10.200.7.150 - lokale Schnittstelle
dnsmasq: /etc/hosts gelesen - 7 Adressen
dnsmasq: query[A] ping.de from 10.200.7.150
dnsmasq: forwarded ping.de to 192.168.0.3
dnsmasq: reply ping.de is 83.97.42.2
dnsmasq: query[A] ping.de from 10.200.7.150
dnsmasq: cached ping.de is 83.97.42.2

OK - YAML

Comment 6 Arvid Requate

2017-11-08 16:06:42 CET

<http://errata.software-univention.de/ucs/4.1/481.html>