CVE-2022-26495

    Dashboard / Vulnerabilities / CVE-2022-26495

    CVE-2022-26495

    Published: 6 Mar 2022Last Modified: 24 Oct 2026

    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://lists.debian.org/nbd/2022/01/msg00037.html, https://sourceforge.net/projects/nbd/files/nbd/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/26xxx/CVE-2022-26495.json, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/, https://nvd.nist.gov/vuln/detail/CVE-2022-26495, https://security.gentoo.org/glsa/202402-10, https://www.debian.org/security/2022/dsa-5100, https://lists.debian.org/debian-lts-announce/2022/03/msg00014.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ca2b9b33890e430a76b57f83cdabe80c64b12829

    Affected versions

    nbd-3.23

    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-2022-26495 | CVE-DB