Vulnerability Description
xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | >= 4.12.0 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202208-23Third Party Advisory
- https://www.debian.org/security/2021/dsa-4977Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-383.txtVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202208-23Third Party Advisory
- https://www.debian.org/security/2021/dsa-4977Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-383.txtVendor Advisory
FAQ
What is CVE-2021-28700?
CVE-2021-28700 is a vulnerability with a CVSS score of 4.9 (MEDIUM). xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set...
How severe is CVE-2021-28700?
CVE-2021-28700 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28700?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen, Fedoraproject Fedora, Debian Debian Linux.