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    CVE-2020-37239

    libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.

    Published:May 16, 2026
    Last Modified:May 18, 2026
    EPS:May 16, 2026
    EPSS Score:0.00085
    CVSS Score:9.8

    Affected Products

    Vendor
    Gegl
    Product
    Gegl
    Vendor
    Gegl
    Product
    Libbabl

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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