Bug 1006509 (CVE-2013-4291) - CVE-2013-4291 libvirt: supplementary groups not adjusted correctly when parsing label
Summary: CVE-2013-4291 libvirt: supplementary groups not adjusted correctly when parsi...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2013-4291
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 964359 1006511 1006513
Blocks: 1006495
TreeView+ depends on / blocked
 
Reported: 2013-09-10 18:09 UTC by Petr Matousek
Modified: 2021-02-17 07:22 UTC (History)
19 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-09-10 18:10:51 UTC
Embargoed:

Attachments (Terms of Use)

Description Petr Matousek 2013-09-10 18:09:33 UTC 
Upstream Commit 29fe5d7 (released in 1.1.1) introduced a latent problem for any caller of virSecurityManagerSetProcessLabel and where the domain already had a uid:gid label to be parsed.  Such a setup would collect the list of supplementary groups during virSecurityManagerPreFork, but then ignores that information, and thus fails to call setgroups() to adjust the supplementary groups of the process.

Introduced by:
http://libvirt.org/git/?p=libvirt.git;a=commit;h=29fe5d745fbe207ec2415441d4807ae76be05974

Upstream fix:
http://libvirt.org/git/?p=libvirt.git;a=commit;h=fe11d34a6d46d6641ce90dc665164fda7bb6bff8
Comment 1 Petr Matousek 2013-09-10 18:10:51 UTC 
Statement:

Not vulnerable.

This issue did not affect the versions of libvirt package as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 2 Petr Matousek 2013-09-10 18:13:56 UTC 
Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 1006511]
Comment 5 Fedora Update System 2013-10-01 02:14:43 UTC 
libvirt-0.10.2.8-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2013-10-02 06:40:52 UTC 
libvirt-1.0.5.6-2.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.