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    CVE-2017-16938

    A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a denial-of-service attack or other unspecified impact with a maliciously crafted GIF format file, related to an uncontrolled loop in the LZWReadByte function of the gifread.c file.

    Published:Nov 24, 2017
    Last Modified:Apr 20, 2025
    EPS:Nov 24, 2017
    EPSS Score:0.00503
    CVSS Score:7.8

    Affected Products

    Vendor
    Optipng Project
    Product
    Optipng

    Exploits

    No exploit reference

    Related CVEs

    CVE-2023-43907 (CVSS 7.8) — OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.…
    CVE-2017-1000229 (CVSS 7.8) — Integer overflow bug in function minitiff_read_info() of optipng 0.7.6 allows an attacker to remotely execute …
    CVE-2016-3981 (CVSS 7.8) — Heap-based buffer overflow in the bmp_read_rows function in pngxrbmp.c in OptiPNG before 0.7.6 allows remote a…
    CVE-2016-3982 (CVSS 8.8) — Off-by-one error in the bmp_rle4_fread function in pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers …
    CVE-2015-7802 (CVSS 5.5) — gifread.c in gif2png, as used in OptiPNG before 0.7.6, allows remote attackers to cause a denial of service (u…
    CVE-2015-7801 (CVSS 8.8) — Use-after-free vulnerability in OptiPNG 0.6.4 allows remote attackers to execute arbitrary code via a crafted …
    CVE-2009-0749 (CVSS 7.8) — Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6…

    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