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Vulnerability of NTP.org: memory leak via Ntp.keys CMAC Algorithm

Synthesis of the vulnerability 

An attacker can create a memory leak via Ntp.keys CMAC Algorithm of NTP.org, in order to trigger a denial of service.
Vulnerable software: Fedora, AIX, Meinberg NTP Server, NTP.org, openSUSE Leap, Solaris, Slackware, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 2/4.
Creation date: 24/06/2020.
Références of this computer vulnerability: bulletinoct2020, CVE-2020-15025, FEDORA-2020-a0b39d58db, openSUSE-SU-2020:0934-1, openSUSE-SU-2020:1007-1, SSA:2020-175-01, SUSE-SU-2020:14415-1, SUSE-SU-2020:1805-1, SUSE-SU-2020:1823-1, VIGILANCE-VUL-32611.

Description of the vulnerability 

An attacker can create a memory leak via Ntp.keys CMAC Algorithm of NTP.org, in order to trigger a denial of service.
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This security note impacts software or systems such as Fedora, AIX, Meinberg NTP Server, NTP.org, openSUSE Leap, Solaris, Slackware, SUSE Linux Enterprise Desktop, SLES.

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

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

An attacker with a expert ability can exploit this computer weakness announce.

Solutions for this threat 

NTP.org: version 4.2.8p15.
The version 4.2.8p15 is fixed:
  http://www.ntp.org/downloads.html

AIX: patch for NTPv4.
A patch is indicated in information sources.

Fedora 32: new ntp packages.
New packages are available:
  Fedora 32: ntp 4.2.8p15-1.fc32

Meinberg NTP Server: version 4.2.8p15.
The version 4.2.8p15 is fixed:
  https://www.meinbergglobal.com/english/sw/ntp.htm

openSUSE Leap 15.1: new ntp packages.
New packages are available:
  openSUSE Leap 15.1: ntp 4.2.8p15-lp151.2.3.1

openSUSE Leap 15.2: new ntp packages.
New packages are available:
  openSUSE Leap 15.2: ntp 4.2.8p15-lp152.3.3.1

Oracle Solaris: patch for third party software of October 2020 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Slackware: new ntp packages.
New packages are available:
  Slackware 14.0: ntp 4.2.8p15-*-1_slack14.0
  Slackware 14.1: ntp 4.2.8p15-*-1_slack14.1
  Slackware 14.2: ntp 4.2.8p15-*-1_slack14.2

SUSE LE 11 SP4: new ntp packages.
New packages are available:
  SUSE LE 11 SP4: ntp 4.2.8p15-64.16.1

SUSE LE 12 SP2-5: new ntp packages.
New packages are available:
  SUSE LE 12 SP2: ntp 4.2.8p15-88.1
  SUSE LE 12 SP3: ntp 4.2.8p15-88.1
  SUSE LE 12 SP4: ntp 4.2.8p15-88.1
  SUSE LE 12 SP5: ntp 4.2.8p15-88.1

SUSE LE 15: new ntp packages.
New packages are available:
  SUSE LE 15 RTM: ntp 4.2.8p15-4.10.1
  SUSE LE 15 SP1: ntp 4.2.8p15-4.10.1
  SUSE LE 15 SP2: ntp 4.2.8p15-4.10.1

Wind River Linux: version 10.17.41.22.
The version 10.17.41.22 is fixed:
  https://support2.windriver.com/index.php?page=cve&on=list&show=50&product_id=1&product_version%5B0%5D=2&id_status%5B0%5D=4&cve_id_filter=&s=&submit=&order_by=cve_modified_date&order_way=desc#list
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