Buffer overflow in QEMU - CVE-2020-11102

 

Buffer overflow in QEMU - CVE-2020-11102

Published: May 5, 2020


Vulnerability identifier: #VU27544
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-11102
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: QEMU
Affected software:
QEMU

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary within hw/net/tulip.c in QEMU during the copying of tx/rx buffers because the frame size is not validated against the r/w data length. A remote attacker can  trigger memory corruption and execute arbitrary code on the target system.


How to mitigate CVE-2020-11102

Install update from vendor's website.

Sources