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Vulnerability of Xpdf: out-of-bounds memory reading via FlateStream-getChar

Synthesis of the vulnerability

An attacker can force a read at an invalid address via FlateStream::getChar() of Xpdf, in order to trigger a denial of service, or to obtain sensitive information.
Severity of this bulletin: 2/4.
Creation date: 28/10/2019.
Références of this threat: CVE-2019-12515, FEDORA-2019-01da705767, FEDORA-2019-a457286734, VIGILANCE-VUL-30729.

Description of the vulnerability

An attacker can force a read at an invalid address via FlateStream::getChar() of Xpdf, in order to trigger a denial of service, or to obtain sensitive information.
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This vulnerability note impacts software or systems such as Fedora.

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

Solutions for this threat

Fedora: new xpdf packages.
New packages are available:
  Fedora 29: xpdf 4.02-1.fc29
  Fedora 30: xpdf 4.02-1.fc30
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