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Fencer Intel
medium 4.0

CVE-2011-3346 json

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 permissio…

published 2014-04-01 12 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3310

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

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.

Patch / fix

  • xen RHEL 5 VIRTUALIZATION, RHEL 5 3.0.3-132.el5_7.2
  • xen-libs RHEL 5 3.0.3-132.el5_7.2

red hat advisories RHSA-2011:1401

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-3346 updated cvss 4.0

qemu: local DoS with SCSI CD-ROM

  • Red Hat Enterprise Linux (v. 5 server) xen 3.0.3-132.el5_7.2, xen-libs 3.0.3-132.el5_7.2 Red Hat Enterprise Linux Desktop (v. 5 client) xen 3.0.3-132.el5_7.2, xen-libs 3.0.3-132.el5_7.2 Red Hat RHEL Desktop Multi OS (v. 5 client) xen 3.0.3-132.el5_7.2 Red Hat RHEL Virtualization (v. 5 server) xen 3.0.3-132.el5_7.2
    fixed: vendor fix RHSA-2011:1401
  • Red Hat Enterprise Linux 6 qemu-img, qemu-kvm, qemu-kvm-tools, qemu-guest-agent, qemu-guest-agent-win32
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/bonzini/qemu/commit/103b40f51e4012b3b0ad20f615562a1806d7f49a referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/bonzini/qemu/commit/7285477ab11831b1cf56e45878a89170dd06d9b9 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:L/AC:H/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.