Bug 44969

Summary:	openvpn: Denial of service (4.2)
Product:	UCS	Reporter:	Arvid Requate <requate>
Component:	Security updates	Assignee:	Philipp Hahn <hahn>
Status:	CLOSED FIXED	QA Contact:	Arvid Requate <requate>
Severity:	normal
Priority:	P5	CC:	best
Version:	UCS 4.2	Flags:	requate: Patch_Available+
Target Milestone:	UCS 4.2-3-errata
Hardware:	Other
OS:	Linux
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?:	---
User Pain:		Enterprise Customer affected?:
School Customer affected?:		ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:		Bug group (optional):
Max CVSS v3 score:	7.5 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Description Arvid Requate

2017-07-11 14:23:17 CEST

Upstream Debian package version 2.3.4-5+deb8u2 fixes:

* Denial of Service of server by authenticated attacker due to reachable assertion when packet-ID counter rolls over. (CVE-2017-7479)
* remote denial-of-service when receiving malformed IPv6 packet. (CVE-2017-7508)
* Pre-authentication remote crash/information disclosure for clients (CVE-2017-7520)
* remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension(). (CVE-2017-7521)

Comment 1 Philipp Hahn

2018-01-25 10:59:59 CET

Mass-import from Debian-Security:
  python -m univention.repong.^Cbmirror -s jessie -r 4.2-3 --override=$HOME/REPOS/repo-ng/mirror/update_ucs42_mirror_from_debian.yml --errata=doc/errata --sql --process=ALL -vvvv --now=201801211553

YAML: git:bd6159834a..449aa5a7cf

Comment 2 Arvid Requate

2018-04-12 19:49:44 CEST

Verified:
* Upstream binary imported into errata4.2-3
* No additional UCS patches in 4.2
* Package installation: Ok
* Advisory: Ok

Comment 3 Arvid Requate

2018-04-18 14:15:54 CEST

<http://errata.software-univention.de/ucs/4.2/340.html>