Out-of-bounds read in QEMU - CVE-2017-2620

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Main Vulnerability Database Vulnerabilities #VU31986

Out-of-bounds read in QEMU - CVE-2017-2620

Published: July 28, 2020


Vulnerability identifier: #VU31986
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-2620
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: QEMU
Affected software:
QEMU

Detailed vulnerability description

The vulnerability allows a remote user to gain access to potentially sensitive information.

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.


How to mitigate CVE-2017-2620

Install updates from vendor's website.

Sources