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Vulnerability of Python Pallets Project Flask: memory leak via JSON Data

Synthesis of the vulnerability 

An attacker can create a memory leak via JSON Data of Python Pallets Project Flask, in order to trigger a denial of service.
Vulnerable systems: Debian, openSUSE Leap, RHEL.
Severity of this threat: 2/4.
Creation date: 03/04/2019.
Références of this weakness: CVE-2018-1000656, DLA-1892-1, openSUSE-SU-2019:1112-1, RHSA-2020:0870-01, VIGILANCE-VUL-28928.

Description of the vulnerability 

An attacker can create a memory leak via JSON Data of Python Pallets Project Flask, in order to trigger a denial of service.
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This cybersecurity vulnerability impacts software or systems such as Debian, openSUSE Leap, RHEL.

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

Solutions for this threat 

Debian 8: new flask packages.
New packages are available:
  Debian 8: flask 0.10.1-2+deb8u1

openSUSE Leap 15.0: new python-Flask packages.
New packages are available:
  openSUSE Leap 15.0: python2-Flask 0.12.4-lp150.2.3.1, python3-Flask 0.12.4-lp150.2.3.1

RHEL 7.7: new python-flask packages.
New packages are available:
  RHEL 7.7: python-flask 0.10.1-5.el7_7
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