CVE-2023-40360: Null Pointer Dereference
First published: Mon Aug 14 2023(Updated: )
QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/qemu | <1:8.0.4+dfsg-1ubuntu3.23.10.2 | 1:8.0.4+dfsg-1ubuntu3.23.10.2 |
| ubuntu/qemu | <1:8.1.3+ | 1:8.1.3+ |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.0.2+ds-2 1:9.1.0+ds-3 | |
| QEMU KVM | >=8.0.0<=8.0.4 | |
| QEMU KVM | <=8.0.4 |
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Reference Links
- https://gitlab.com/birkelund/qemu/-/commit/6c8f8456cb0b239812dee5211881426496da7b98
- https://gitlab.com/qemu-project/qemu/-/issues/1815
- https://security.netapp.com/advisory/ntap-20230915-0004/
- https://www.qemu.org/docs/master/system/security.html
- https://launchpad.net/bugs/cve/CVE-2023-40360
- https://gitlab.com/qemu-project/qemu/-/commit/73064edfb864743cde2c08f319609344af02aeb3
- https://gitlab.com/qemu-project/qemu/-/commit/6c8f8456cb0b239812dee5211881426496da7b98
- https://security-tracker.debian.org/tracker/CVE-2023-40360
- https://ubuntu.com/security/notices/USN-6567-1
- https://www.cve.org/CVERecord?id=CVE-2023-40360
- https://nvd.nist.gov/vuln/detail/CVE-2023-40360
- https://ubuntu.com/security/CVE-2023-40360
Frequently Asked Questions
What is the severity of CVE-2023-40360?
The severity of CVE-2023-40360 is medium with a severity value of 5.5.
How does CVE-2023-40360 affect QEMU?
CVE-2023-40360 affects QEMU versions up to and including 8.0.4.
What is the root cause of CVE-2023-40360?
The root cause of CVE-2023-40360 is a NULL pointer access in nvme_directive_receive in the hw/nvme/ctrl.c file of QEMU.
How can CVE-2023-40360 be fixed?
To fix CVE-2023-40360, update QEMU to a version higher than 8.0.4, which includes the necessary fixes.
Are there any additional references for CVE-2023-40360?
Yes, additional references for CVE-2023-40360 can be found at the following links: [link1], [link2], [link3].
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