CVE-2011-3346: Buffer Overflow
First published: Tue Sep 06 2011(Updated: )
Buffer overflow in hw/scsi-disk.c in the SCSI subsystem in QEMU before 0.15.2, as used by Xen, might allow local guest users with permission to access the CD-ROM to cause a denial of service (guest crash) via a crafted SAI READ CAPACITY SCSI command. NOTE: this is only a vulnerability when root has manually modified certain permissions or ACLs.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU | <=0.15.1 | |
| QEMU | =0.15.0-rc1 | |
| QEMU | =0.15.0-rc2 | |
| Red Hat Enterprise Linux | =5 | |
| Xen XAPI | ||
| <=0.15.1 | ||
| =0.15.0-rc1 | ||
| =0.15.0-rc2 | ||
| =5 | ||
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Reference Links
- http://www.redhat.com/support/errata/RHSA-2011-1401.html
- https://github.com/bonzini/qemu/commit/7285477ab11831b1cf56e45878a89170dd06d9b9
- http://www.openwall.com/lists/oss-security/2011/10/20/2
- https://github.com/bonzini/qemu/commit/103b40f51e4012b3b0ad20f615562a1806d7f49a
- https://bugzilla.redhat.com/show_bug.cgi?id=736038
- http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=735993
- https://rhn.redhat.com/errata/RHSA-2011-1401.html
Frequently Asked Questions
What is the severity of CVE-2011-3346?
CVE-2011-3346 is considered a moderate severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2011-3346?
To fix CVE-2011-3346, upgrade to QEMU version 0.15.2 or later.
Who is affected by CVE-2011-3346?
CVE-2011-3346 affects local guest users with permission to access the CD-ROM in QEMU versions prior to 0.15.2.
What impact does CVE-2011-3346 have?
The impact of CVE-2011-3346 is a potential guest crash resulting from a crafted SAI READ CAPACITY SCSI command.
Is CVE-2011-3346 exploitable remotely?
No, CVE-2011-3346 is not remotely exploitable; it requires local access to the guest environment.
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