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Vulnerability of libxslt: out-of-bounds memory reading via xsltNumberFormatDecimal

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via xsltNumberFormatDecimal() of libxslt, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable software: iOS by Apple, iPhone, Mac OS X, Debian, Unisphere EMC, Fedora, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 18/07/2019.
Références of this computer vulnerability: bulletinjul2019, CVE-2019-13118, DLA-1860-1, DSA-2020-062, FEDORA-2020-40fa1ae94b, FEDORA-2020-90c768a947, HT210346, HT210348, SUSE-SU-2019:1867-1, USN-4164-1, VIGILANCE-VUL-29809.

Description of the vulnerability 

An attacker can force a read at an invalid address via xsltNumberFormatDecimal() of libxslt, in order to trigger a denial of service, or to obtain sensitive information.
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This security weakness impacts software or systems such as iOS by Apple, iPhone, Mac OS X, Debian, Unisphere EMC, Fedora, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Apple iOS: version 12.4.
The version 12.4 is fixed:
  https://support.apple.com/

Apple macOS: versions 10.12.6-2019-004, 10.13.6-2019-004 and 10.14.6.
Versions 10.12.6-2019-High, 10.13.6-2019-High and 10.14.6 are fixed:
  https://support.apple.com/

Debian 8: new libxslt packages.
New packages are available:
  Debian 8: libxslt 1.1.28-2+deb8u5

Dell EMC Unisphere for PowerMax: solution.
The solution is indicated in information sources.

Fedora 30: new libxslt packages.
New packages are available:
  Fedora 30: libxslt 1.1.34-1.fc30

Fedora 31: new libxslt packages.
New packages are available:
  Fedora 31: libxslt 1.1.34-1.fc31

Oracle Solaris: patch for third party software of July 2019 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 12 SP4: new libxslt packages.
New packages are available:
  SUSE LE 12 SP4: libxslt 1.1.28-17.6.1

Ubuntu: new libxslt1.1 packages.
New packages are available:
  Ubuntu 19.10: libxslt1.1 1.1.33-0ubuntu1.1
  Ubuntu 19.04: libxslt1.1 1.1.32-2ubuntu0.2
  Ubuntu 18.04 LTS: libxslt1.1 1.1.29-5ubuntu0.2
  Ubuntu 16.04 LTS: libxslt1.1 1.1.28-2.1ubuntu0.3
  Ubuntu 14.04 ESM: libxslt1.1 1.1.28-2ubuntu0.2+esm1
  Ubuntu 12.04 ESM: libxslt1.1 1.1.26-8ubuntu1.6

Wind River Linux: version 10.18.44.9.
The version 10.18.44.9 is fixed:
  https://support2.windriver.com/
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