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Vulnerability of Fine Free file: denial of service via ELF Strings

Synthesis of the vulnerability 

An attacker can force Fine Free file to analyze a malicious ELF file, in order to trigger a denial of service.
Impacted systems: Debian, Fedora, FreeBSD, openSUSE Leap, Ubuntu, Unix (platform) ~ not comprehensive.
Severity of this alert: 1/4.
Creation date: 17/12/2014.
Références of this alert: CVE-2014-9621, DSA-3121-1, FEDORA-2015-2020, FreeBSD-EN-15:06.file, MDVSA-2015:080, openSUSE-SU-2017:3067-1, USN-3686-1, USN-3686-2, VIGILANCE-VUL-15833.

Description of the vulnerability 

The Fine Free file (libmagic) program analyzes files, in order to automatically recognize their type.

However, an ELF file containing large strings consumes a lot of resources.

An attacker can therefore force Fine Free file to analyze a malicious ELF file, in order to trigger a denial of service.
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This cybersecurity bulletin impacts software or systems such as Debian, Fedora, FreeBSD, openSUSE Leap, Ubuntu, Unix (platform) ~ not comprehensive.

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

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer vulnerability bulletin.

Solutions for this threat 

Fine Free file: version 5.22.
The version 5.22 is fixed:
  ftp://ftp.astron.com/pub/file/

Fine Free file: patch for ELF Strings.
A patch is available in information sources.

Debian: new file packages.
New packages are available:
  Debian 7: file 5.11-2+deb7u7

Fedora 21: new file packages.
New packages are available:
  Fedora 21: file 5.22-2.fc21

FreeBSD: patch for file.
A patch is available in information sources.
  FreeBSD 10.1: https://security.FreeBSD.org/patches/EN-15:06/file-10.1.patch
  FreeBSD 9.3: https://security.FreeBSD.org/patches/EN-15:06/file-9.3.patch
  FreeBSD 8.4: https://security.FreeBSD.org/patches/EN-15:06/file-8.4.patch
PGP signatures are available in the same folder.

Mandriva BS2: new php packages.
New packages are available:
  Mandriva BS2: php 5.5.23-1.mbs2

openSUSE Leap: new file packages.
New packages are available:
  openSUSE Leap 42.2: file 5.22-7.3.1
  openSUSE Leap 42.3: file 5.22-10.1

Ubuntu: new file packages.
New packages are available:
  Ubuntu 18.04 LTS: file 1:5.32-2ubuntu0.1
  Ubuntu 17.10: file 1:5.32-1ubuntu0.1
  Ubuntu 16.04 LTS: file 1:5.25-2ubuntu1.1
  Ubuntu 14.04 LTS: file 1:5.14-2ubuntu3.4
  Ubuntu 12.04 ESM: file 5.09-2ubuntu0.7
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