CVE-2020-36311

CVE-2020-36311

Medium · published April 7, 2021

CVSS v3.1
5.5
EPSS
0%
Percentile
25.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00335 · 25.7th percentile
Published
2021-04-07T04:15Z
Affected products (3)
ProductVersionsFixed in
linux/linux_kernel< 5.9.05.9.0
debian/debian_linuxall versions—
debian/debian_linuxall versions—
References (8)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9 · [email protected]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7be74942f184fdfba34ddd19a0d995deb34d4a03 · [email protected]https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html · [email protected]https://www.debian.org/security/2021/dsa-4941 · [email protected]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7be74942f184fdfba34ddd19a0d995deb34d4a03 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4941 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 06 APR 23:28Z
    An issue was discovered in the Linux kernel before 5.9
    cvelistv5