Bug 494443 - (CVE-2009-0798) CVE-2009-0798 acpid: too many open files DoS
CVE-2009-0798 acpid: too many open files DoS
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
http://web.nvd.nist.gov/view/vuln/det...
impact=moderate,source=researcher,rep...
: Security
Depends On: 496287 496288 496289 496290 496291 496292 502583
Blocks:
  Show dependency treegraph
 
Reported: 2009-04-06 17:23 EDT by Vincent Danen
Modified: 2012-01-09 03:37 EST (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2009-06-16 03:09:13 EDT
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RHEL 7.3 requirements from Atomic Host:


Attachments (Terms of Use)
original upstream patch that fixes the issue (8.70 KB, patch)
2009-04-08 13:35 EDT, Vincent Danen
no flags Details | Diff
upstream patch used for 1.1.10 to fix CVE-2009-0798 (7.38 KB, patch)
2009-04-22 17:21 EDT, Vincent Danen
no flags Details | Diff

  None (edit)
Description Vincent Danen 2009-04-06 17:23:56 EDT
A flaw in how the acpid daemon handles error conditions can force the daemon into an infinite loop by not closing open UNIX sockets, even if the other end of the socket is closed.  If an attacker were to exhaust the number of available sockets open to acpid, too many files would be open and the daemon will enter an infinite loop, consuming a large amount of CPU and blocking legitimate processes from communicating with acpid.
Comment 4 Vincent Danen 2009-04-08 13:35:01 EDT
Created attachment 338766 [details]
original upstream patch that fixes the issue
Comment 8 Vincent Danen 2009-04-21 14:07:04 EDT
Embargo is lifted.
Comment 9 Vincent Danen 2009-04-22 14:41:04 EDT
Upstream has released 1.0.10 which contains the fix for this issue.
Comment 10 Vincent Danen 2009-04-22 17:21:10 EDT
Created attachment 340826 [details]
upstream patch used for 1.1.10 to fix CVE-2009-0798

The patch is slightly different from upstream than what they initially provided us, so we should base our updates on this patch instead.
Comment 11 errata-xmlrpc 2009-05-07 07:59:17 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 2.1
  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2009:0474 https://rhn.redhat.com/errata/RHSA-2009-0474.html

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