UBUNTU-CVE-2024-26777

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    UBUNTU-CVE-2024-26777

    Published: 3 Apr 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2024-26777
    Aliases:
    USN-6820-1
    USN-6820-2
    USN-6821-1

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

    References: https://ubuntu.com/security/CVE-2024-26777, https://git.kernel.org/linus/e421946be7d9bf545147bea8419ef8239cb7ca52, https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e, https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207, https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313, https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1, https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99, https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb, https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b, https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52, https://www.cve.org/CVERecord?id=CVE-2024-26777, https://ubuntu.com/security/notices/USN-6820-1, https://ubuntu.com/security/notices/USN-6821-1, https://ubuntu.com/security/notices/USN-6821-2, https://ubuntu.com/security/notices/USN-6828-1, https://ubuntu.com/security/notices/USN-6820-2, https://ubuntu.com/security/notices/USN-6821-3, https://ubuntu.com/security/notices/USN-6831-1, https://ubuntu.com/security/notices/USN-6821-4, https://ubuntu.com/security/notices/USN-6867-1, https://ubuntu.com/security/notices/USN-6871-1, https://ubuntu.com/security/notices/USN-6892-1, https://ubuntu.com/security/notices/USN-6919-1, https://ubuntu.com/security/notices/USN-7183-1, https://ubuntu.com/security/notices/USN-7184-1, https://ubuntu.com/security/notices/USN-7185-1, https://ubuntu.com/security/notices/USN-7185-2

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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-2024-26777 | CVE-DB