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    CVE-2018-20096

    There is a heap-based buffer over-read in the Exiv2::tEXtToDataBuf function of pngimage.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

    Published:Dec 10, 2018
    Last Modified:Nov 21, 2024
    EPS:Dec 12, 2018
    EPSS Score:0.01305
    CVSS Score:6.5

    Affected Products

    Vendor
    Exiv2
    Product
    Exiv2
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/Exiv2/exiv2/issues/590https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206https://github.com/Exiv2/exiv2/issues/590https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-25884 (CVSS 2.7) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2026-27596 (CVSS 2.7) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2026-27631 (CVSS 2.7) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2025-55304 (CVSS 1.8) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2025-54080 (CVSS 1.8) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2025-26623 (CVSS 5.3) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…
    CVE-2024-39695 (CVSS 5.3) — Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of …
    CVE-2024-24826 (CVSS 5.5) — Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of …
    CVE-2024-25112 (CVSS 5.5) — Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of …
    CVE-2023-44398 (CVSS 8.8) — Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC im…

    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