CVE-2022-2639

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    CVE-2022-2639

    Published: 1 Sept 2022Last Modified: 12 Aug 2026

    Summary:

    Details: An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2639.json, https://nvd.nist.gov/vuln/detail/CVE-2022-2639, https://bugzilla.redhat.com/show_bug.cgi?id=2084479, https://github.com/torvalds/linux/commit/cefa91b2332d7009bc0be5d951d6cbbf349f90f8

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 4b0986a3613c92f4ec1bdc7f60ec66fea135991f
    Fixed -None

    Affected versions

    kernel 5.18

    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-2022-2639 | CVE-DB