Advisories ยป MGASA-2019-0313

Updated libxslt packages fix security vulnerabilities

Publication date: 02 Nov 2019
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).