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Vulnerability of Exiv2: integer overflow via PngImage-readMetadata

Synthesis of the vulnerability 

An attacker can trigger an integer overflow via PngImage::readMetadata() of Exiv2, in order to trigger a denial of service, and possibly to run code.
Vulnerable systems: Fedora.
Severity of this threat: 2/4.
Creation date: 09/08/2019.
Références of this weakness: CVE-2019-13109, FEDORA-2019-60553d5a18, VIGILANCE-VUL-29996.

Description of the vulnerability 

An attacker can trigger an integer overflow via PngImage::readMetadata() of Exiv2, in order to trigger a denial of service, and possibly to run code.
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This computer threat impacts software or systems such as Fedora.

Our Vigil@nce team determined that the severity of this computer vulnerability alert 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 weakness.

Solutions for this threat 

Fedora 30: new exiv2 packages.
New packages are available:
  Fedora 30: exiv2 0.27.2-1.fc30
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