UBUNTU-CVE-2022-26495

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    UBUNTU-CVE-2022-26495

    Published: 6 Mar 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2022-26495
    Aliases:
    USN-5323-1

    Summary:

    Details: In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

    References: https://ubuntu.com/security/CVE-2022-26495, https://lists.debian.org/nbd/2022/01/msg00037.html, https://sourceforge.net/projects/nbd/files/nbd/, https://ubuntu.com/security/notices/USN-5323-1, https://www.cve.org/CVERecord?id=CVE-2022-26495

    Affected packages

    Package

    Name: nbd

    Purl: pkg:deb/ubuntu/nbd@1:3.7-1ubuntu0.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1:3.3-3ubuntu1

    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
    UBUNTU-CVE-2022-26495 | CVE-DB