The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Perl YAML-LibYAML: privilege escalation via Unset Load Blessed

Synthesis of the vulnerability 

An attacker can bypass restrictions via Unset Load Blessed of Perl YAML::LibYAML, in order to escalate his privileges.
Impacted software: openSUSE Leap, Perl Module ~ not comprehensive, SLES.
Severity of this computer vulnerability: 2/4.
Creation date: 24/07/2020.
Références of this announce: openSUSE-SU-2020:1089-1, openSUSE-SU-2020:1093-1, SUSE-SU-2020:2025-1, VIGILANCE-VUL-32908.

Description of the vulnerability 

An attacker can bypass restrictions via Unset Load Blessed of Perl YAML::LibYAML, in order to escalate his privileges.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This cybersecurity weakness impacts software or systems such as openSUSE Leap, Perl Module ~ not comprehensive, SLES.

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

Solutions for this threat 

Perl YAML-LibYAML: version 0.69.
The version 0.69 is fixed:
  https://metacpan.org/changes/release/TINITA/YAML-LibYAML-0.69

openSUSE Leap 15: new perl-YAML-LibYAML packages.
New packages are available:
  openSUSE Leap 15.1: perl-YAML-LibYAML 0.69-lp151.3.3.1
  openSUSE Leap 15.2: perl-YAML-LibYAML 0.69-lp152.4.3.1

SUSE LE 15 SP1-2: new perl-YAML-LibYAML packages.
New packages are available:
  SUSE LE 15 SP1: perl-YAML-LibYAML 0.69-3.3.1
  SUSE LE 15 SP2: perl-YAML-LibYAML 0.69-3.3.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides system vulnerability analysis. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.