Debian: DSA-3399-1: libpng security update

    Date18 Nov 2015
    CategoryDebian
    524
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities have been discovered in the libpng PNG library. The Common Vulnerabilities and Exposures project identifies the following problems:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3399-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    November 18, 2015                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : libpng
    CVE ID         : CVE-2015-7981 CVE-2015-8126
    Debian Bug     : 803078 805113
    
    Several vulnerabilities have been discovered in the libpng PNG library.
    The Common Vulnerabilities and Exposures project identifies the
    following problems:
    
    CVE-2015-7981
    
        Qixue Xiao discovered an out-of-bounds read vulnerability in the
        png_convert_to_rfc1123 function. A remote attacker can potentially
        take advantage of this flaw to cause disclosure of information from
        process memory.
    
    CVE-2015-8126
    
        Multiple buffer overflows were discovered in the png_set_PLTE and
        png_get_PLTE functions. A remote attacker can take advantage of this
        flaw to cause a denial of service (application crash) via a small
        bit-depth value in an IHDR (image header) chunk in a PNG image.
    
    For the oldstable distribution (wheezy), these problems have been fixed
    in version 1.2.49-1+deb7u1.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 1.2.50-2+deb8u1.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 1.2.54-1.
    
    We recommend that you upgrade your libpng 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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