UBUNTU-CVE-2022-0847

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    UBUNTU-CVE-2022-0847

    Published: 7 Mar 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2022-0847

    Summary:

    Details: A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

    References: https://ubuntu.com/security/CVE-2022-0847, https://dirtypipe.cm4all.com/, https://www.openwall.com/lists/oss-security/2022/03/07/1, https://ubuntu.com/security/notices/USN-5317-1, https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/DirtyPipe, https://ubuntu.com/security/notices/USN-5362-1, https://www.cve.org/CVERecord?id=CVE-2022-0847, https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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-2022-0847 | CVE-DB