Debian: DSA-3323-1: icu security update

    Date01 Aug 2015
    CategoryDebian
    58
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities were discovered in the International Components for Unicode (ICU) library. CVE-2014-8146
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3323-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Laszlo Boszormenyi
    August 01, 2015                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : icu
    CVE ID         : CVE-2014-6585 CVE-2014-8146 CVE-2014-8147 CVE-2015-4760
    Debian Bug     : 778511 784773
    
    Several vulnerabilities were discovered in the International Components
    for Unicode (ICU) library.
    
    CVE-2014-8146
    
        The Unicode Bidirectional Algorithm implementation does not properly
        track directionally isolated pieces of text, which allows remote
        attackers to cause a denial of service (heap-based buffer overflow)
        or possibly execute arbitrary code via crafted text.
    
    CVE-2014-8147
    
        The Unicode Bidirectional Algorithm implementation uses an integer
        data type that is inconsistent with a header file, which allows
        remote attackers to cause a denial of service (incorrect malloc
        followed by invalid free) or possibly execute arbitrary code via
        crafted text.
    
    CVE-2015-4760
    
        The Layout Engine was missing multiple boundary checks. These could
        lead to buffer overflows and memory corruption. A specially crafted
        file could cause an application using ICU to parse untrusted font
        files to crash and, possibly, execute arbitrary code.
    
    Additionally, it was discovered that the patch applied to ICU in DSA-3187-1
    for CVE-2014-6585 was incomplete, possibly leading to an invalid memory
    access. This could allow remote attackers to disclose portion of private
    memory via crafted font files.
    
    For the oldstable distribution (wheezy), these problems have been fixed
    in version 4.8.1.1-12+deb7u3.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 52.1-8+deb8u2.
    
    For the testing distribution (stretch), these problems have been fixed
    in version 52.1-10.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 52.1-10.
    
    We recommend that you upgrade your icu 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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