The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of libexif: out-of-bounds memory reading via exif_data_save_data_entry

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via exif_data_save_data_entry() of libexif, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Debian, Solaris, Slackware, Ubuntu.
Severity of this threat: 2/4.
Creation date: 24/08/2018.
Références of this weakness: bulletinjul2018, CVE-2017-7544, DLA-2214-1, SSA:2020-140-02, USN-4277-1, VIGILANCE-VUL-27074.

Description of the vulnerability 

An attacker can force a read at an invalid address via exif_data_save_data_entry() of libexif, in order to trigger a denial of service, or to obtain sensitive information.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer weakness impacts software or systems such as Debian, Solaris, Slackware, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability note 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 cybersecurity threat.

Solutions for this threat 

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

Oracle Solaris: patch for third party software of July 2018 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

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

Ubuntu: new libexif12 packages.
New packages are available:
  Ubuntu 19.10: libexif12 0.6.21-5.1ubuntu0.1
  Ubuntu 18.04 LTS: libexif12 0.6.21-4ubuntu0.1
  Ubuntu 16.04 LTS: libexif12 0.6.21-2ubuntu0.1
  Ubuntu 14.04 ESM: libexif12 0.6.21-1ubuntu1+esm1
  Ubuntu 12.04 ESM: libexif12 0.6.20-2ubuntu0.2
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a cybersecurity database. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.