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Vulnerability of Firejail: code execution via Output Concatenation

Synthesis of the vulnerability 

An attacker can use a vulnerability via Output Concatenation of Firejail, in order to run code.
Vulnerable systems: Debian, Fedora, openSUSE Leap.
Severity of this threat: 2/4.
Creation date: 07/08/2020.
Références of this weakness: CVE-2020-17368, DLA-2336-1, DSA-4742-1, FEDORA-2020-45fc8559d5, FEDORA-2020-80a6d7e7e0, openSUSE-SU-2020:1208-1, openSUSE-SU-2021:0271-1, VIGILANCE-VUL-33032.

Description of the vulnerability 

An attacker can use a vulnerability via Output Concatenation of Firejail, in order to run code.
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This computer threat impacts software or systems such as Debian, Fedora, openSUSE Leap.

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 user shell.

An attacker with a expert ability can exploit this cybersecurity weakness.

Solutions for this threat 

Debian 10: new firejail packages.
New packages are available:
  Debian 10: firejail 0.9.58.2-2+deb10u1

Debian 9: new firejail packages.
New packages are available:
  Debian 9: firejail 0.9.44.8-2+deb9u1

Fedora 31-32: new firejail packages.
New packages are available:
  Fedora 31: firejail 0.9.62.4-1.fc31
  Fedora 32: firejail 0.9.62.4-1.fc32

openSUSE Leap 15.2: new firejail packages (11/02/2021).
New packages are available:
  openSUSE Leap 15.2: firejail 0.9.64.4-lp152.3.6.1

openSUSE Leap 15.2: new firejail packages (17/08/2020).
New packages are available:
  openSUSE Leap 15.2: firejail 0.9.62-lp152.3.3.1
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