UBUNTU-CVE-2021-29425

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    UBUNTU-CVE-2021-29425

    Published: 13 Apr 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-29425
    Aliases:
    USN-5095-1

    Summary:

    Details: In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.

    References: https://ubuntu.com/security/CVE-2021-29425, https://www.openwall.com/lists/oss-security/2021/04/12/1, https://issues.apache.org/jira/browse/IO-556, https://ubuntu.com/security/notices/USN-5095-1, https://www.cve.org/CVERecord?id=CVE-2021-29425

    Affected packages

    Package

    Name: commons-io

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4-2ubuntu0.1~esm1

    Affected versions

    2.4-2

    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-2021-29425 | CVE-DB