CVE-2021-28038
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-28038
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-28038.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 5.10.21.hardened1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 5.10.24-1 |
| debian | bullseye | fixed | 5.10.24-1 |
| debian | forky | fixed | 5.10.24-1 |
| debian | sid | fixed | 5.10.24-1 |
| debian | trixie | fixed | 5.10.24-1 |
References
Verify integrity in audit chain (admin only). AS-IS.