---
cve: "CVE-2021-28038"
severity: "LOW"
cvss: 3.1
epss: "0.7%"
vendor: "n/a"
kev: false
exploited: false
published: "2021-03-05 18:15:13"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T16:45:19+02:00"
---

# CVE-2021-28038

> 3.1 LOW

## Beschreibung

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.

## Referenzen

- <http://xenbits.xen.org/xsa/advisory-367.html>
- <http://www.openwall.com/lists/oss-security/2021/03/05/1>
- <https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html>
- <https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html>
- <https://security.netapp.com/advisory/ntap-20210409-0001/>
- <https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2991397d23ec597405b116d96de3813420bdcbc3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-28038) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_