Bug 144471 - CAN-2005-0176 unlock someone elses ipc memory
Summary: CAN-2005-0176 unlock someone elses ipc memory
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Dave Jones
QA Contact: Brian Brock
Whiteboard: public=20041124,impact=moderate
Depends On:
Blocks: 144195
TreeView+ depends on / blocked
Reported: 2005-01-07 13:49 UTC by Josh Bressers
Modified: 2015-01-04 22:15 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-02-18 17:20:52 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:092 0 important SHIPPED_LIVE Important: kernel security update 2005-02-18 05:00:00 UTC

Description Josh Bressers 2005-01-07 13:49:33 UTC
*** This bug has been split off bug 142802 ***

------- Original comment by Mark J. Cox (Security Response Team) on 2004.12.14
10:34 -------

Reported on lkml a flaw that allows you to unlock someone
elses ipc memory (hence crossing permission boundary).


"In 2.6.8, the only processes that could lock shared memory segments
were those with CAP_IPC_LOCK.  Unprivileged processes did not get a
look in."

Looks like this is 2.6.9 (Arjan says since the fixed rhel3 mlock stuff
got merged it might be there too)

Comment 1 Josh Bressers 2005-02-18 17:20:52 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


Note You need to log in before you can comment on or make changes to this bug.