Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-48914: A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.
Fixed packages 28
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | ivshmem-tools | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-audio-alsa | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-audio-oss | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-audio-pa | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-audio-sdl | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-curl | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-dmg | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-iscsi | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-nfs | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-rbd | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-block-ssh | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-common | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-debuginfo | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-guest-agent | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-img | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-kvm | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-kvm-core | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-system-aarch64 | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-system-aarch64-core | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-system-x86 | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-system-x86-core | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-ui-curses | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-ui-gtk | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-ui-sdl | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-user | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-user-binfmt | 10:3.1.0-8.amzn2.0.25 |
| Amazon Linux · 2 | qemu-user-static | 10:3.1.0-8.amzn2.0.25 |
Vulnerabilities 1
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Medium 6.7
Qemu-kvm: heap buffer overflow in virtio-blk scsi request handling
A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed v…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-48914.html