CVE-2018-20815 — 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-122 — Heap-based Buffer Overflow10 documents7 sources
Severity
9.8CRITICALNVD
OSV5.6
EPSS
3.9%
top 11.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
QemuDebian Qemu
Timeline
PublishedMay 31
Latest updateMay 24

Description

In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶debiandebian/qemu< qemu 1:3.1+dfsg-7 (bookworm)
▶Debianqemu/qemu< 1:3.1+dfsg-7+3
▶Ubuntuqemu/qemu< 2.0.0+dfsg-2ubuntu1.46+2
▶NVDqemu/qemu3.1.0

🔴Vulnerability Details

3
GHSA
GHSA-4g35-fx39-gwjh: In QEMU 3↗2022-05-24
▶
OSV
CVE-2018-20815: In QEMU 3↗2019-05-31
▶
OSV
qemu update↗2019-05-14
▶

📋Vendor Advisories

3
Ubuntu
QEMU update↗2019-05-14
▶
Red Hat
QEMU: device_tree: heap buffer overflow while loading device tree blob↗2018-12-14
▶
Debian
CVE-2018-20815: qemu - In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-20815 qemu: device_tree: heap buffer overflow while loading device tree blob [fedora-all]↗2019-03-27
▶
Bugzilla
CVE-2018-20815 QEMU: device_tree: heap buffer overflow while loading device tree blob↗2019-03-27
▶
Bugzilla
CVE-2018-20815 xen: QEMU: device_tree: heap buffer overflow while loading device tree blob [fedora-all]↗2019-03-27
▶