Mageia 2019-0313: libxslt security update

    Date 02 Nov 2019
    610
    Posted By LinuxSecurity Advisories
    Updated libxslt package fixes security vulnerabilities: * In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains
    MGASA-2019-0313 - Updated libxslt packages fix security vulnerabilities
    
    Publication date: 02 Nov 2019
    URL: https://advisories.mageia.org/MGASA-2019-0313.html
    Type: security
    Affected Mageia releases: 7
    CVE: CVE-2019-13117,
         CVE-2019-13118,
         CVE-2019-18197
    
    Updated libxslt package fixes security vulnerabilities:
    
    * In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings
      could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This
      could allow an attacker to discern whether a byte on the stack contains
      the characters A, a, I, i, or 0, or any other character (CVE-2019-13117).
    
    * In numbers.c in libxslt 1.1.33, a type holding grouping characters of an
      xsl:number instruction was too narrow and an invalid character/length
      combination could be passed to xsltNumberFormatDecimal, leading to a read
      of uninitialized stack data (CVE-2019-13118).
    
    * In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't
      reset under certain circumstances. If the relevant memory area happened to
      be freed and reused in a certain way, a bounds check could fail and memory
      outside a buffer could be written to, or uninitialized data could be
      disclosed (CVE-2019-18197).
    
    References:
    - https://bugs.mageia.org/show_bug.cgi?id=25643
    - https://usn.ubuntu.com/4164-1/
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13117
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13118
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18197
    
    SRPMS:
    - 7/core/libxslt-1.1.33-2.1.mga7
    

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