CVE-2021-3506

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    CVE-2021-3506

    Published: 19 Apr 2021Last Modified: 16 Apr 2026

    Summary:

    Details: An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

    References: https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2520013.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html, https://security.netapp.com/advisory/ntap-20210611-0007/, https://bugzilla.redhat.com/show_bug.cgi?id=1944298, http://www.openwall.com/lists/oss-security/2021/05/08/1, https://www.openwall.com/lists/oss-security/2021/03/28/2

    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-2021-3506 | CVE-DB