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Vulnerability of Tor: memory leak via KIST Cell Scheduler

Synthesis of the vulnerability 

An attacker can create a memory leak via KIST Cell Scheduler of Tor, in order to trigger a denial of service.
Vulnerable software: openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 1/4.
Creation date: 03/04/2019.
Références of this computer vulnerability: CVE-2019-8955, openSUSE-SU-2019:1107-1, VIGILANCE-VUL-28927.

Description of the vulnerability 

An attacker can create a memory leak via KIST Cell Scheduler of Tor, in order to trigger a denial of service.
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This vulnerability announce impacts software or systems such as openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this cybersecurity threat is low.

The trust level is of type confirmed by the editor, with an origin of internet server.

An attacker with a expert ability can exploit this computer threat bulletin.

Solutions for this threat 

openSUSE: new tor packages.
New packages are available:
  openSUSE Leap 42.3: tor 0.3.4.11-21.1
  openSUSE Leap 15.0: tor 0.3.4.11-lp150.22.1
  SUSE LE 15 RTM: tor 0.3.4.11-bp150.3.6.1
  SUSE LE 12 RTM-SP4: tor 0.3.4.11-20.1
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