UBUNTU-CVE-2015-4490

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    UBUNTU-CVE-2015-4490

    Published: 11 Aug 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-4490
    Aliases:
    USN-2702-1

    Summary:

    Details: The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wildcard source-expression matching, which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior.

    References: https://ubuntu.com/security/CVE-2015-4490, https://www.mozilla.org/en-US/security/advisories/mfsa2015-91/, https://ubuntu.com/security/notices/USN-2702-1, https://www.cve.org/CVERecord?id=CVE-2015-4490

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build4-0ubuntu0.14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -40.0+build4-0ubuntu0.14.04.1

    Affected versions

    24.0+build1-0ubuntu1

    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