PSF-2011-2

    Dashboard / Vulnerabilities / PSF-2011-2

    PSF-2011-2

    Published: 24 May 2011Last Modified: 9 Oct 2025
    Aliases:
    CVE-2011-1521

    Summary: urllib redirect

    Details: The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs.

    References: https://bugs.python.org/issue11662

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -60a4a90c8dd2972eb4bb977e70835be9593cbbac

    Affected versions

    v0.9.8
    v0.9.9

    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