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Vulnerability of LibTIFF: integer overflow via _TIFFCheckMalloc

Synthesis of the vulnerability 

An attacker can trigger an integer overflow via _TIFFCheckMalloc() of LibTIFF, in order to trigger a denial of service, and possibly to run code.
Vulnerable products: Debian, LibTIFF, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 19/08/2019.
Références of this bulletin: CVE-2019-14973, DLA-1897-1, DSA-4608-1, DSA-4670-1, openSUSE-SU-2020:1561-1, openSUSE-SU-2020:1840-1, RHSA-2020:1688-01, RHSA-2020:3902-01, SSA:2019-308-01, SUSE-SU-2019:3058-1, SUSE-SU-2020:2744-1, USN-4158-1, VIGILANCE-VUL-30078.

Description of the vulnerability 

An attacker can trigger an integer overflow via _TIFFCheckMalloc() of LibTIFF, in order to trigger a denial of service, and possibly to run code.
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This security announce impacts software or systems such as Debian, LibTIFF, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat 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 computer vulnerability announce.

Solutions for this threat 

LibTIFF: version 4.1.0.
The version 4.1.0 is fixed:
  http://www.simplesystems.org/libtiff/v4.1.0.html
  http://libtiff.maptools.org/v4.1.0.html

LibTIFF: patch for _TIFFCheckMalloc.
A patch is available:
  https://gitlab.com/libtiff/libtiff/merge_requests/90

Debian 10: new tiff packages.
New packages are available:
  Debian 10: tiff 4.1.0+git191117-2~deb10u1

Debian 8: new tiff packages.
New packages are available:
  Debian 8: tiff 4.0.3-12.3+deb8u9

Debian 9: new tiff packages.
New packages are available:
  Debian 9: tiff 4.0.8-2+deb9u5

openSUSE Leap 15.1: new tiff packages.
New packages are available:
  openSUSE Leap 15.1: tiff 4.0.9-lp151.10.3.1

openSUSE Leap 15.2: new tiff packages.
New packages are available:
  openSUSE Leap 15.2: tiff 4.0.9-lp152.11.3.1

Oracle Solaris: patch for third party software of October 2019 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 7.8: new libtiff packages.
New packages are available:
  RHEL 7.0-7.8: libtiff 4.0.3-35.el7

RHEL 8: new libtiff packages.
New packages are available:
  RHEL 8.0-8.1: libtiff 4.0.9-17.el8

Slackware: new libtiff packages.
New packages are available:
  Slackware 14.2: libtiff 4.1.0-*-1_slack14.2

SUSE LE 12: new tiff packages.
New packages are available:
  SUSE LE 12 SP4: tiff 4.0.9-44.42.1
  SUSE LE 12 SP5: tiff 4.0.9-44.42.1

SUSE LE 15: new tiff packages.
New packages are available:
  SUSE LE 15 SP2: libtiff5 4.0.9-5.30.28
  SUSE LE 15 SP1: libtiff5 4.0.9-5.30.28

Ubuntu: new libtiff5 packages.
New packages are available:
  Ubuntu 19.04: libtiff5 4.0.10-4ubuntu0.1
  Ubuntu 18.04 LTS: libtiff5 4.0.9-5ubuntu0.3
  Ubuntu 16.04 LTS: libtiff5 4.0.6-1ubuntu0.7

Wind River Linux: version 10.17.41.20.
The version 10.17.41.20 is fixed:
  https://support2.windriver.com/
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