Debian: DSA-3938-1: libgd2 security update

    Date12 Aug 2017
    CategoryDebian
    75
    Posted ByLinuxSecurity Advisories
    Matviy Kotoniy reported that the gdImageCreateFromGifCtx() function used to load images from GIF format files in libgd2, a library for programmatic graphics creation and manipulation, does not zero stack allocated color map buffers before their use, which may result in
    
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    Debian Security Advisory DSA-3938-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    August 12, 2017                       https://www.debian.org/security/faq
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    Package        : libgd2
    CVE ID         : CVE-2017-7890
    Debian Bug     : 869263
    
    Matviy Kotoniy reported that the gdImageCreateFromGifCtx() function used
    to load images from GIF format files in libgd2, a library for
    programmatic graphics creation and manipulation, does not zero stack
    allocated color map buffers before their use, which may result in
    information disclosure if a specially crafted file is processed.
    
    For the oldstable distribution (jessie), this problem has been fixed
    in version 2.1.0-5+deb8u10.
    
    For the stable distribution (stretch), this problem has been fixed in
    version 2.2.4-2+deb9u1.
    
    We recommend that you upgrade your libgd2 packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
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