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Vulnerability of libvpx: use after free via ParseContentEncodingEntry

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via ParseContentEncodingEntry() of libvpx, in order to trigger a denial of service, and possibly to run code.
Impacted systems: Fedora, Android OS, openSUSE Leap, RHEL, SLES.
Severity of this alert: 2/4.
Creation date: 13/01/2020.
Références of this alert: CVE-2019-2126, FEDORA-2020-65eac1b48b, FEDORA-2020-6cd410d9e4, openSUSE-SU-2020:0105-1, RHSA-2020:4629-01, SUSE-SU-2020:0143-1, VIGILANCE-VUL-31307.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via ParseContentEncodingEntry() of libvpx, in order to trigger a denial of service, and possibly to run code.
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This vulnerability impacts software or systems such as Fedora, Android OS, openSUSE Leap, RHEL, SLES.

Our Vigil@nce team determined that the severity of this security announce 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 computer vulnerability note.

Solutions for this threat 

Fedora: new libvpx packages.
New packages are available:
  Fedora 30: libvpx 1.8.2-1.fc30
  Fedora 31: libvpx 1.8.2-1.fc31

Google Android: patch for August 2019.
A patch is indicated in information sources.

openSUSE Leap 15.1: new libvpx packages.
New packages are available:
  openSUSE Leap 15.1: libvpx 1.6.1-lp151.5.3.1

RHEL 8: new libvpx packages.
New packages are available:
  RHEL 8.0-8.2: libvpx 1.7.0-8.el8

SUSE LE 15: new libvpx packages.
New packages are available:
  SUSE LE 15 RTM: libvpx 1.6.1-6.3.1
  SUSE LE 15 SP1: libvpx 1.6.1-6.3.1
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