CVE-2023-45661

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    CVE-2023-45661

    Published: 20 Oct 2023Last Modified: 14 Mar 2026

    Summary: Wild address read in stbi__gif_load_next in stb_image

    Details: stb_image is a single file MIT licensed library for processing images. A crafted image file may trigger out of bounds memcpy read in `stbi__gif_load_next`. This happens because two_back points to a memory address lower than the start of the buffer out. This issue may be used to leak internal memory allocation information.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45661.json, https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L6817, https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L7021-L7022, https://lists.fedoraproject.org/archives/list/[email protected]/message/NMXKOKPP4BKTNUTF5KSRDQAWOUILQZNO/, https://lists.fedoraproject.org/archives/list/[email protected]/message/QVABVF4GEM6BYD5L4L64RCRSXUHY6LGN/, https://lists.fedoraproject.org/archives/list/[email protected]/message/UVQ7ONFH5GWLMXYEAJG32A3EUKUCEVCR/, https://nvd.nist.gov/vuln/detail/CVE-2023-45661, https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2023-45661 | CVE-DB