medium5.5
CVE-2020-36311
An issue was discovered in the Linux kernel before 5.9.
Impact
An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering many encrypted regions), aka CID-7be74942f184.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 5.9.0 |
| Debian | Debian Linux | Versions 9.0, 10.0 |
References
- NVD record
- CVE.org record
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7be74942f184fdfba34ddd19a0d995deb34d4a03
- https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html
- https://www.debian.org/security/2021/dsa-4941