A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.
PUBLISHED5.2CWE-121
Qemu-kvm: stack buffer overflow in e1000 device via short frames in loopback mode
Problem type
Affected products
Red Hat
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8 Advanced Virtualization
Red Hat Enterprise Linux 8 Advanced Virtualization
Red Hat Enterprise Linux 9
Red Hat OpenShift Container Platform 4
References
access.redhat.com
https://access.redhat.com/security/cve/CVE-2025-12464
RHBZ#2408845
https://bugzilla.redhat.com/show_bug.cgi?id=2408845
JSON source
Click to expand
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