Bug 41719 – libvirt: Authentication issue (4.1)

Bug 41719 - libvirt: Authentication issue (4.1)


Summary:	libvirt: Authentication issue (4.1)

Status:	CLOSED WONTFIX

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

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	UCS maintainers
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Depends on:	40317 45635
Blocks:
	Show dependency tree / graph

Reported:	2016-07-01 18:47 CEST by Janek Walkenhorst
Modified:	2019-04-11 19:24 CEST (History)
CC List:	1 user (show)

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What kind of report is it?:	Security Issue
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Max CVSS v3 score:	5.6 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L)

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Description Janek Walkenhorst

2016-07-01 18:47:49 CEST

It was discovered that there was a password policy issue in libvirt, a
library for interfacing with different virtualization systems.

Setting an empty graphics password is documented as a way to disable
VNC/SPICE access, but QEMU does not always behave like that. VNC would
happily accept the empty password. We enforce the behavior by setting
password expiration to "now".

(CVE-2016-5008)

For Debian 7 "Wheezy", this issue has been fixed in libvirt version
0.9.12.3-1+deb7u2.

Comment 1 Arvid Requate

2017-11-01 17:13:12 CET

In UCS 4.1 we shipped 1.2.9-9~bpo70+1 from wheezy-backports, so none of the above applies. Instead we have to monitor the Debian jessie version here and backport patches if applicable. In errata4.1-1 we patched the package to deb8u2.


Upstream Debian package version 1.2.9-9+deb8u3 fixed:

* Let empty default VNC password work as documented (CVE-2016-5008)

Comment 2 Arvid Requate

2018-04-17 15:56:17 CEST

This issue has been filed against UCS 4.1.

UCS 4.1 is out of maintenance and many UCS components have vastly changed in later releases. Thus, this issue is now being closed.

If this issue still occurs in newer UCS versions, please use "Clone this bug" or reopen this issue. In this case please provide detailed information on how this issue is affecting you.