CVE-2021-28038

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    CVE-2021-28038

    Published: 5 Mar 2021Last Modified: 16 Apr 2026

    Summary:

    Details: 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.

    References: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2991397d23ec597405b116d96de3813420bdcbc3, 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/, http://xenbits.xen.org/xsa/advisory-367.html, http://www.openwall.com/lists/oss-security/2021/03/05/1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-28038 | CVE-DB