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Vulnerability of PowerDNS Recursor: information disclosure via gethostname

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via gethostname() of PowerDNS Recursor, in order to obtain sensitive information.
Vulnerable systems: Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this threat: 1/4.
Creation date: 25/05/2020.
Références of this weakness: CVE-2020-10030, FEDORA-2020-c0ff3df740, FEDORA-2020-d9abb0c06d, openSUSE-SU-2020:0698-1, VIGILANCE-VUL-32336.

Description of the vulnerability 

An attacker can bypass access restrictions to data via gethostname() of PowerDNS Recursor, in order to obtain sensitive information.
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This cybersecurity weakness impacts software or systems such as Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security vulnerability is low.

The trust level is of type confirmed by the editor, with an origin of privileged shell.

An attacker with a expert ability can exploit this vulnerability bulletin.

Solutions for this threat 

Fedora 31-32: new pdns-recursor packages.
New packages are available:
  Fedora 31: pdns-recursor 4.2.2-1.fc31
  Fedora 32: pdns-recursor 4.3.1-1.fc32

openSUSE Leap 15.1, SUSE LE 12: new pdns-recursor packages.
New packages are available:
  openSUSE Leap 15.1: pdns-recursor 4.1.12-lp151.3.3.1
  SUSE LE 15 SP1: pdns-recursor 4.1.12-bp151.4.3.1
  SUSE LE 12 RTM-SP5: pdns-recursor 4.1.16-19.1
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