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Vulnerability of lldp: memory leak

Synthesis of the vulnerability 

An attacker can create a memory leak of lldp, in order to trigger a denial of service.
Impacted products: Debian, Fedora, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 13/01/2021.
Références of this threat: CVE-2020-27827, DLA-2571-1, DSA-4836-1, FEDORA-2021-fba11d37ee, openSUSE-SU-2021:0239-1, RHSA-2021:0834-01, RHSA-2021:0835-01, RHSA-2021:0837-01, SUSE-SU-2021:0258-1, SUSE-SU-2021:0276-1, SUSE-SU-2021:0277-1, SUSE-SU-2021:0284-1, SUSE-SU-2021:0297-1, SUSE-SU-2021:0298-1, SUSE-SU-2021:0300-1, USN-4691-1, VIGILANCE-VUL-34341.

Description of the vulnerability 

An attacker can create a memory leak of lldp, in order to trigger a denial of service.
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This security weakness impacts software or systems such as Debian, Fedora, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Debian 10: new openvswitch packages.
New packages are available:
  Debian 10: openvswitch 2.10.6+ds1-0+deb10u1

Debian 9: new openvswitch packages.
New packages are available:
  Debian 9: openvswitch 2.6.10-0+deb9u1

Fedora 33: new dpdk packages.
New packages are available:
  Fedora 33: dpdk 20.11-1.fc33

Fedora 33: new openvswitch packages.
New packages are available:
  Fedora 33: openvswitch 2.15.0-1.fc33

openSUSE Leap 15.2: new openvswitch packages.
New packages are available:
  openSUSE Leap 15.2: openvswitch 2.13.2-lp152.3.9.1

RHEL 7: new openvswitch2.11 packages.
New packages are available:
  RHEL 7.0-7.9: openvswitch2.11 2.11.3-86.el7fdp

RHEL 7: new openvswitch2.13 packages.
New packages are available:
  RHEL 7.0-7.9: openvswitch2.13 2.13.0-81.el7fdp

RHEL 8: new openvswitch2.11 packages.
New packages are available:
  RHEL 8.0-8.3: openvswitch2.11 2.11.3-83.el8fdp

SUSE LE 12 SP3: new openvswitch packages.
New packages are available:
  SUSE LE 12 SP3: openvswitch 2.7.12-3.36.1

SUSE LE 12 SP5: new openvswitch packages.
New packages are available:
  SUSE LE 12 SP5: openvswitch 2.11.5-3.3.2

SUSE LE 15 RTM: new openvswitch packages.
New packages are available:
  SUSE LE 15 RTM: openvswitch 2.11.5-6.30.2

SUSE LE 15 SP2: new openvswitch packages.
New packages are available:
  SUSE LE 15 SP2: openvswitch 2.13.2-9.11.1

SUSE LE: new openvswitch packages.
New packages are available:
  SUSE LE 12 SP4: openvswitch 2.8.10-4.23.1
  SUSE LE 12 SP2: openvswitch 2.5.11-25.26.1
  SUSE LE 15 SP1: openvswitch 2.11.5-3.12.1

Ubuntu: new openvswitch-common packages.
New packages are available:
  Ubuntu 20.10: openvswitch-common 2.13.1-0ubuntu1.2
  Ubuntu 20.04 LTS: openvswitch-common 2.13.1-0ubuntu0.20.04.3
  Ubuntu 18.04 LTS: openvswitch-common 2.9.7-0ubuntu0.18.04.2
  Ubuntu 16.04 LTS: openvswitch-common 2.5.9-0ubuntu0.16.04.2
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