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Bug#: 131427
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Security <security@gentoo.org>
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Reporter: Benedikt Böhm <hollow@gentoo.org>
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Bug 131427 depends on: Show dependency tree
Bug 131427 blocks:

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Description:   Opened: 2006-04-27 04:27 0000
vserver-sources is prone to multiple local privilege escalation
vulnerabilities.

Inside a Virtual Private Server the distinction between the root user and a
normal user is lost with regard to the following (vserver specific)
capabilites:

- VXC_SET_UTSNAME: Allow setdomainname(2) and sethostname(2)
- VXC_SET_RLIMIT: Allow setrlimit(2)
- VXC_SYSLOG: Allow syslog(2)
- VXC_SECURE_MOUNT: Allow secure mount(2)
- VXC_SECURE_REMOUNT: Allow secure remount
- VXC_BINARY_MOUNT: Allow binary/network mounts
- VXC_QUOTA_CTL: Allow quota ioctl

All versions in portage are currently affected.

We are still awaiting the proper fix from upstream, which should be available
in the next 24 hours i guess.

------- Comment #1 From Benedikt Böhm 2006-04-27 04:35:06 0000 -------
Jan R

------- Comment #2 From Benedikt Böhm 2006-04-27 04:35:06 0000 -------
Jan Rêkorajski (baggins@pld-linux.org) on irc.oftc.net#vserver reported this
issue

------- Comment #3 From Stefan Cornelius (RETIRED) 2006-04-27 05:07:15 0000 -------
CCing phreak as second maintainer, please provide fixed ebuids but commit only
if the fix/new version is public, thanks.

------- Comment #4 From Benedikt Böhm 2006-04-27 23:41:42 0000 -------
The fix was released upstream in 2.0.2_rc18/2.1.1_rc18 (~arch) which are now in
portage, additionally i have bumped 2.0.1 (arch) to -r4 with the fix
backported.

A more detailed description of the bug can be found at
http://www.paul.sladen.org/vserver/archives/200604/0323.html

------- Comment #5 From Thierry Carrez (RETIRED) 2006-04-28 10:51:38 0000 -------
This is a kernel issue.

------- Comment #6 From Benedikt Böhm 2006-05-01 23:59:08 0000 -------
is there anything preventing the GLSA to be issued?

------- Comment #7 From Tim Yamin (RETIRED) 2006-05-05 13:55:21 0000 -------
I see no problem with doing a GLSA for this one issue as it only affects one
sourceset, if you so wish, but we haven't done Kernel GLSAs since 200408 :)

------- Comment #8 From Benedikt Böhm 2006-05-06 00:19:27 0000 -------
oh, ok.. then the issue is fixed :)

------- Comment #9 From Tim Yamin (RETIRED) 2006-05-06 07:01:00 0000 -------
Fixed then :)

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