MGASA-2022-0403

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    MGASA-2022-0403

    Published: 1 Nov 2022Last Modified: 16 Apr 2026

    Summary: Updated nbd packages fix security vulnerability

    Details: It was discovered that nbd prior to 3.24 contained 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 (CVE-2022-26495). Stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name. (CVE-2022-26496) Packaging has been adjusted to create the required nbd user and group at installation.

    References: https://advisories.mageia.org/MGASA-2022-0403.html, https://bugs.mageia.org/show_bug.cgi?id=30153, https://www.debian.org/lts/security/2022/dla-2944, https://www.debian.org/security/2022/dsa-5100, https://ubuntu.com/security/notices/USN-5323-1, https://lists.fedoraproject.org/archives/list/[email protected]/thread/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/, https://lists.opensuse.org/archives/list/[email protected]/thread/GY3FXWPGNBOFA2QZOFDFNU2AZJWYEW7A/

    Affected packages

    Package

    Name: nbd

    Purl: pkg:rpm/mageia/nbd?arch=source&distro=mageia-8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.24-1.2.mga8

    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