CVE-2016-9846 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Qemu

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-244 — Heap Inspection10 documents7 sources
Severity
6.5MEDIUMNVD
OSV5.5
EPSS
0.1%
top 75.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
QemuDebian Qemu
Timeline
PublishedDec 29
Latest updateMay 13

Description

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HExploitability: 2.0 | Impact: 4.0

Affected Packages4 packages

▶debiandebian/qemu< qemu 1:2.8+dfsg-1 (bookworm)
▶Debianqemu/qemu< 1:2.8+dfsg-1+3
▶Ubuntuqemu/qemu< 2.0.0+dfsg-2ubuntu1.33+1
▶NVDqemu/qemu2.7.1+1

Patches

Patch: lists.gnu.org ↗Patch: lists.gnu.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-gwq3-r3rx-h2mh: QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue↗2022-05-13
▶
OSV
qemu vulnerabilities↗2017-04-20
▶
OSV
CVE-2016-9846: QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue↗2016-12-29
▶

📋Vendor Advisories

3
Ubuntu
QEMU vulnerabilities↗2017-04-20
▶
Red Hat
Qemu: display: virtio-gpu: memory leakage while updating cursor data↗2016-11-01
▶
Debian
CVE-2016-9846: qemu - QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is v...↗2016
▶

💬Community

3
Bugzilla
CVE-2016-9846 Qemu: display: virtio-gpu: memory leakage while updating cursor data [fedora-all]↗2016-12-07
▶
Bugzilla
CVE-2016-9846 Qemu: display: virtio-gpu: memory leakage while updating cursor data↗2016-12-07
▶
Bugzilla
CVE-2014-9846 ImageMagick: overflow in rle file↗2016-06-07
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