CVE-2011-3346

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-04-01 · updated 2026-06-16
Weakness: CWE-119

Description

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.

Affected products

QEMU: through 0.15.1; 0.15.0-rc1, 0.15.0-rc2
Red Hat Enterprise Linux: 5
xen: all versions

References

http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log
http://www.openwall.com/lists/oss-security/2011/10/20/2
http://www.redhat.com/support/errata/RHSA-2011-1401.html
https://bugzilla.redhat.com/show_bug.cgi?id=736038
https://github.com/bonzini/qemu/commit/103b40f51e4012b3b0ad20f615562a1806d7f49a
https://github.com/bonzini/qemu/commit/7285477ab11831b1cf56e45878a89170dd06d9b9
http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log
http://www.openwall.com/lists/oss-security/2011/10/20/2
http://www.redhat.com/support/errata/RHSA-2011-1401.html
https://bugzilla.redhat.com/show_bug.cgi?id=736038
https://github.com/bonzini/qemu/commit/103b40f51e4012b3b0ad20f615562a1806d7f49a
https://github.com/bonzini/qemu/commit/7285477ab11831b1cf56e45878a89170dd06d9b9

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