CVE-2018-17962
QEMU: pcnet: integer overflow leads to buffer overflow
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · September 26, 2018
Updated · November 22, 2025
Description
An integer overflow issue was found in the AMD PC-Net II NIC emulation in QEMU. It could occur while receiving packets, if the size value was greater than INT_MAX. Such overflow would lead to stack buffer overflow issue. A user inside guest could use this flaw to crash the QEMU process resulting in DoS.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 6.5CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE-121 · Stack-based Buffer Overflow