Bug 144518 - CAN-2005-0087 alsa-lib disables stack protection for it's users
CAN-2005-0087 alsa-lib disables stack protection for it's users
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: alsa-lib (Show other bugs)
All Linux
medium Severity high
: ---
: ---
Assigned To: Brian Stein
: Security
Depends On:
Blocks: FC3Update 142822
  Show dependency treegraph
Reported: 2005-01-07 16:45 EST by Brian Stein
Modified: 2013-03-01 00:14 EST (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2005-02-15 04:25:07 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
patch to fix this issue (851 bytes, patch)
2005-01-07 16:45 EST, Arjan van de Ven
no flags Details | Diff

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:033 normal SHIPPED_LIVE Important: alsa-lib security update 2005-02-15 00:00:00 EST

  None (edit)
Description Arjan van de Ven 2005-01-07 16:45:54 EST
Description of problem:
libasound.so will disable the stack execution protection for all the apps using
it, which is quite a big chunk of our desktop apps.
The cause is a bit of evil code in src/mixer/mixer.c

I will attach a patch to fix this.

Note that this is a rather serious security issue due to the effect of disabling
stack protection (both execshield segment and NX) for a wide range of
applications at once.
Comment 1 Arjan van de Ven 2005-01-07 16:45:54 EST
Created attachment 109498 [details]
patch to fix this issue
Comment 7 Mark J. Cox 2005-01-28 06:49:05 EST
I'm assigning this issue CAN-2005-0087 as it borderline qualifies for
a CVE name under the definition of "exposure".  Since this has the
potential to disable stack execution protection for a large number of
applications, it's violating a reasonable security stance for the
RHEL4 product.
Comment 8 Mark J. Cox 2005-02-15 04:25:07 EST
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.