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Vulnerability of Xpdf: denial of service via PostScriptFunction-exec

Synthesis of the vulnerability 

An attacker can trigger a fatal error via PostScriptFunction::exec() of Xpdf, in order to trigger a denial of service.
Vulnerable software: Debian, Ubuntu.
Severity of this announce: 2/4.
Creation date: 27/06/2019.
Références of this computer vulnerability: CVE-2019-10018, DLA-2440-1, USN-4042-1, VIGILANCE-VUL-29641.

Description of the vulnerability 

An attacker can trigger a fatal error via PostScriptFunction::exec() of Xpdf, in order to trigger a denial of service.
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This threat impacts software or systems such as Debian, Ubuntu.

Our Vigil@nce team determined that the severity of this computer 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 cybersecurity bulletin.

Solutions for this threat 

Debian 9: new poppler packages.
New packages are available:
  Debian 9: poppler 0.48.0-2+deb9u4

Ubuntu: new poppler packages.
New packages are available:
  Ubuntu 19.04: poppler 0.74.0-0ubuntu1.2
  Ubuntu 18.10: poppler 0.68.0-0ubuntu1.7
  Ubuntu 18.04 LTS: poppler 0.62.0-2ubuntu2.9
  Ubuntu 16.04 LTS: poppler 0.41.0-0ubuntu1.14
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