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    CVE-2022-44638

    In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.

    Published:Nov 3, 2022
    Last Modified:May 2, 2025
    EPS:Nov 3, 2022
    EPSS Score:0.0024
    CVSS Score:8.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Pixman
    Product
    Pixman
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.htmlhttps://gitlab.freedesktop.org/pixman/pixman/-/issues/63http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.htmlhttps://gitlab.freedesktop.org/pixman/pixman/-/issues/63

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    References

    http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html
    http://www.openwall.com/lists/oss-security/2022/11/05/1
    https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
    https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
    https://www.debian.org/security/2022/dsa-5276
    http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html
    http://www.openwall.com/lists/oss-security/2022/11/05/1
    https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
    https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
    https://www.debian.org/security/2022/dsa-5276

    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