VIR Vulnerability Intelligence Relay

CVE-2015-6855

high
Published 2015-11-06 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
7.5

Description

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

Predictions

Exploit likelihood
83%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
fedora Fedora Affected 3 releases
VersionStatusFixed in
23 Affected —
22 Affected —
21 Affected —
suse SUSE Affected 1 release
VersionStatusFixed in
12 Affected —
ubuntu Ubuntu Affected 3 releases
VersionStatusFixed in
15.04 Affected —
14.04 Affected —
12.04 Affected —
debian Debian Mixed 8 releases
VersionStatusFixed in
trixie Fixed 1:2.4+dfsg-2
sid Fixed 1:2.4+dfsg-2
forky Fixed 1:2.4+dfsg-2
bullseye Fixed 1:2.4+dfsg-2
bookworm Fixed 1:2.4+dfsg-2
9.0 Affected —
8.0 Affected —
7.0 Affected —

Application impact
VendorProductVersionsFixed
qemuqemu{"endIncluding":"2.4.1"}

References

CWEs

CWE-369

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.