Buffer overflow in QEMU - CVE-2019-15034
Published: April 28, 2020
Vulnerability identifier: #VU27386
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15034
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the hw/display/bochs-display.c in QEMU due to application does not ensure a sufficient PCI config space allocation. A local user can trigger a buffer overflow and escalate privileges on the system.
Affected software
QEMU
qemu (Ubuntu package)
qemu (Debian package)
Opensuse
qemu (Ubuntu package)
qemu (Debian package)
Opensuse
How to mitigate CVE-2019-15034
Install updates from vendor's website.
QEMU - update to 4.0.1
qemu (Ubuntu package) - addressed in versions 1:2.5+dfsg-5ubuntu10.44, 1:2.11+dfsg-1ubuntu7.26, 1:4.0+dfsg-0ubuntu9.6, 1:4.2-3ubuntu6.1
qemu (Debian package) - update to 1:3.1+dfsg-8+deb10u5
qemu (Ubuntu package) - addressed in versions 1:2.5+dfsg-5ubuntu10.44, 1:2.11+dfsg-1ubuntu7.26, 1:4.0+dfsg-0ubuntu9.6, 1:4.2-3ubuntu6.1
qemu (Debian package) - update to 1:3.1+dfsg-8+deb10u5