CVE-2023-2680 Dma reentrancy issue (incomplete fix for cve-2021-3750)
High 7.5
Published
Updated
Check this codebase for CVE-2023-2680 and fix it if it is affected.
What it is: CVE-2023-2680 is a high-severity use after free vulnerability in Qemu Qemu, published on 13 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-2680 in the wild and no public exploit code.
Affected product: Qemu Qemu. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-2680/ (Markdown: https://insights.sbomify.com/CVE-2023-2680/index.md)
An incomplete fix for a DMA reentrancy issue in QEMU allows attackers to trigger a use-after-free, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-2680?
CVE-2023-2680 is a high-severity use after free vulnerability in Qemu Qemu, published on 13 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750.
Weakness: CWE-416
Which versions are affected by CVE-2023-2680?
It affects 2 products.
Linux distribution packages (40)
qemu-guest-agent Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-guest-agent-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-img Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-img-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-audio-dbus-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-audio-pa Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-audio-pa-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-blkio Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-blkio-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-curl Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-curl-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-rbd Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-block-rbd-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-common Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-common-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-core Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-core-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu-ccw Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu-ccw-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu-pci Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-gpu-pci-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-vga Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-display-virtio-vga-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-usb-host Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-usb-host-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-usb-redirect Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-device-usb-redirect-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-docs Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-tests-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-tools Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-tools-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-ui-dbus-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-ui-egl-headless Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-ui-egl-headless-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
qemu-kvm-ui-opengl Red Hat:enterprise_linux:9::appstream | All versions | 17:8.0.0-16.el9_3 |
Products include Qemu Qemu, Redhat Enterprise Linux.
How do I fix CVE-2023-2680?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-2680 being exploited?
There is no known exploitation of CVE-2023-2680 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as GHSA-69cm-qhp7-ch23, MINI-48mc-pjgf-fvrh, MINI-8r8q-wjr6-rrvj, MINI-r83g-3pf5-8r24, RHSA-2023:6368.