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Vulnerability of libexif: information disclosure via exif_data_save_data_entry

Synthesis of the vulnerability 

A local attacker can read a memory fragment via exif_data_save_data_entry() of libexif, in order to obtain sensitive information.
Vulnerable systems: Debian, Android OS, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 1/4.
Creation date: 18/05/2020.
Références of this weakness: CVE-2020-0093, DLA-2214-1, openSUSE-SU-2020:0793-1, RHSA-2020:4040-01, RHSA-2020:4766-01, SSA:2020-140-02, SUSE-SU-2020:1534-1, SUSE-SU-2020:1553-2, USN-4396-1, VIGILANCE-VUL-32282.

Description of the vulnerability 

A local attacker can read a memory fragment via exif_data_save_data_entry() of libexif, in order to obtain sensitive information.
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This security threat impacts software or systems such as Debian, Android OS, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness note is low.

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

An attacker with a expert ability can exploit this computer threat alert.

Solutions for this threat 

Debian 8: new libexif packages (18/05/2020).
New packages are available:
  Debian 8: libexif 0.6.21-2+deb8u2

Google Android/Pixel: patch for May 2020.
A patch is indicated in information sources.

openSUSE Leap 15.1: new libexif packages (11/06/2020).
New packages are available:
  openSUSE Leap 15.1: libexif 0.6.22-lp151.4.6.1

RHEL 7.8: new libexif packages (30/09/2020).
New packages are available:
  RHEL 7.0-7.8: libexif 0.6.22-1.el7

RHEL 8: new libexif packages.
New packages are available:
  RHEL 8.0-8.2: libexif 0.6.22-4.el8

Slackware: new libexif packages.
New packages are available:
  Slackware 14.0: libexif 0.6.22-*-1_slack14.0
  Slackware 14.1: libexif 0.6.22-*-1_slack14.1
  Slackware 14.2: libexif 0.6.22-*-1_slack14.2

SUSE LE 12: new libexif packages (04/06/2020).
New packages are available:
  SUSE LE 12 SP1: libexif 0.6.22-8.9.1
  SUSE LE 12 SP2: libexif 0.6.22-8.9.1
  SUSE LE 12 SP3: libexif 0.6.22-8.9.1
  SUSE LE 12 SP4: libexif 0.6.22-8.9.1
  SUSE LE 12 SP5: libexif 0.6.22-8.9.1

SUSE LE 15 SP1-2: new libexif packages.
New packages are available:
  SUSE LE 15 SP1: libexif 0.6.22-5.6.1
  SUSE LE 15 SP2: libexif 0.6.22-5.6.1

Ubuntu: new libexif packages.
New packages are available:
  Ubuntu 20.04 LTS: libexif12 0.6.21-6ubuntu0.3
  Ubuntu 19.10: libexif12 0.6.21-5.1ubuntu0.5
  Ubuntu 18.04 LTS: libexif12 0.6.21-4ubuntu0.5
  Ubuntu 16.04 LTS: libexif12 0.6.21-2ubuntu0.5
  Ubuntu 14.04 ESM: libexif12 0.6.21-1ubuntu1+esm5
  Ubuntu 12.04 ESM: libexif12 0.6.20-2ubuntu0.6
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