CVE-2021-3139

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    CVE-2021-3139

    Published: 13 Jan 2021Last Modified: 9 Jul 2026

    Summary:

    Details: In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.

    References: http://www.openwall.com/lists/oss-security/2021/01/13/5, https://www.openwall.com/lists/oss-security/2021/01/12/12, https://bugzilla.suse.com/attachment.cgi?id=844938, https://bugzilla.suse.com/show_bug.cgi?id=1178372, https://github.com/open-iscsi/tcmu-runner/pull/644

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 8c9c9db914c9af86a8b0e895f90968b51247f072
    Fixed -None

    Affected versions

    v1.5.2
    v1.5.1
    v1.5.0

    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-2021-3139 | CVE-DB