CVE-2013-1957

    Dashboard / Vulnerabilities / CVE-2013-1957

    CVE-2013-1957

    Published: 24 Apr 2013Last Modified: 10 Apr 2026

    Summary:

    Details: The clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not properly restrict changes to the MNT_READONLY flag, which allows local users to bypass an intended read-only property of a filesystem by leveraging a separate mount namespace.

    References: https://github.com/torvalds/linux/commit/132c94e31b8bca8ea921f9f96a57d684fa4ae0a9, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=132c94e31b8bca8ea921f9f96a57d684fa4ae0a9, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6, http://www.openwall.com/lists/oss-security/2013/04/16/11

    Affected packages

    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