Bug 870412 - (CVE-2012-4544) CVE-2012-4544 xen: Xen domain builder Out-of-memory due to malicious kernel/ramdisk
CVE-2012-4544 xen: Xen domain builder Out-of-memory due to malicious kernel/r...
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
: Security
Depends On: 870413 870414 876997
Blocks: 870415 903143
  Show dependency treegraph
Reported: 2012-10-26 08:25 EDT by Petr Matousek
Modified: 2015-07-31 06:33 EDT (History)
14 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-08-24 09:56:45 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Petr Matousek 2012-10-26 08:25:42 EDT
The Xen PV domain builder contained no validation of the size of the supplied kernel or ramdisk either before or after decompression. This could cause the toolstack to consume all available RAM in the domain running the domain builder.

A malicious guest administrator who can supply a kernel or ramdisk can exhaust memory in domain 0 leading to a denial of service attack.

HVM guests are not affected by this vulnerability.



Red Hat would like to thank the Xen project for reporting this issue.
Comment 2 Petr Matousek 2012-10-26 08:28:55 EDT
Created xen tracking bugs for this issue

Affects: fedora-all [bug 870414]
Comment 6 errata-xmlrpc 2013-02-07 13:54:25 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:0241 https://rhn.redhat.com/errata/RHSA-2013-0241.html

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