MGASA-2026-0567

    Dashboard / Vulnerabilities / MGASA-2026-0567

    MGASA-2026-0567

    Published: 30 Oct 2026Last Modified: 30 Oct 2026

    Summary: Updated cfitsio package fixes security vulnerabilities

    Details: CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize helpers that allows attackers to read memory before the fits_rand_value table via a zero or negative ZDITHER0 seed. Attackers can supply a crafted FITS file with a SUBTRACTIVE_DITHER_1 compressed image, read through fits_open_file() and fits_read_pix(), to cause crashes or leak heap contents in decoded pixels.

    References: https://advisories.mageia.org/MGASA-2026-0567.html, https://bugs.mageia.org/show_bug.cgi?id=36537, https://github.com/HEASARC/cfitsio

    Affected packages

    Package

    Name: cfitsio

    Purl: pkg:rpm/mageia/cfitsio?arch=source&distro=mageia-10

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.7.0-1.mga10

    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
    MGASA-2026-0567 | CVE-DB