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Vulnerability of ANGLE: use after free via gl-Texture-onUnbindAsSamplerTexture

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via gl::Texture::onUnbindAsSamplerTexture() of ANGLE, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, Fedora, Chrome, Edge Chromium, Firefox, openSUSE Leap, Opera, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 30/07/2020.
Références of this computer vulnerability: ADV200002, bulletinjul2020, CVE-2020-6463, DLA-2297-1, DLA-2310-1, DSA-4714-1, DSA-4714-2, DSA-4714-3, DSA-4736-1, DSA-4740-1, FEDORA-2020-0e7f1b663b, FEDORA-2020-da49fbb17c, MFSA2020-30, MFSA2020-31, MFSA2020-32, openSUSE-SU-2020:0604-1, openSUSE-SU-2020:0615-1, openSUSE-SU-2020:0635-1, openSUSE-SU-2020:0823-1, openSUSE-SU-2020:1147-1, openSUSE-SU-2020:1155-1, openSUSE-SU-2020:1179-1, openSUSE-SU-2020:1189-1, openSUSE-SU-2020:1205-1, RHSA-2020:1970-01, RHSA-2020:3229-01, RHSA-2020:3233-01, RHSA-2020:3241-01, RHSA-2020:3253-01, RHSA-2020:3254-01, RHSA-2020:3341-01, RHSA-2020:3342-01, RHSA-2020:3343-01, RHSA-2020:3344-01, RHSA-2020:3345-01, SSA:2020-209-01, SSA:2020-213-01, SUSE-SU-2020:14456-1, SUSE-SU-2020:2100-1, SUSE-SU-2020:2118-1, SUSE-SU-2020:2147-1, SUSE-SU-2020:2179-1, USN-4443-1, VIGILANCE-VUL-32959.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via gl::Texture::onUnbindAsSamplerTexture() of ANGLE, in order to trigger a denial of service, and possibly to run code.
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This computer weakness alert impacts software or systems such as Debian, Fedora, Chrome, Edge Chromium, Firefox, openSUSE Leap, Opera, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness note 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 weakness bulletin.

Solutions for this threat 

Google Chrome: version 81.0.4044.122.
The version 81.0.4044.122 is fixed:
  https://www.google.com/intl/fr_fr/chrome/

Debian 10: new chromium packages.
New packages are available:
  Debian 10: chromium 83.0.4103.116-1~deb10u3

Debian 10: new firefox-esr packages.
New packages are available:
  Debian 10: firefox-esr 68.11.0esr-1~deb10u1

Debian 10: new thunderbird packages.
New packages are available:
  Debian 10: thunderbird 1:68.11.0-1~deb10u1

Debian 9: new firefox-esr packages.
New packages are available:
  Debian 9: firefox-esr 68.11.0esr-1~deb9u1

Debian 9: new thunderbird packages.
New packages are available:
  Debian 9: thunderbird 1:68.11.0-1~deb9u1

Fedora 30: new chromium packages.
New packages are available:
  Fedora 30: chromium 81.0.4044.122-1.fc30

Fedora 31: new chromium packages.
New packages are available:
  Fedora 31: chromium 81.0.4044.138-1.fc31

Microsoft Edge Chromium: version 81.0.416.64.
The version 81.0.416.64 is fixed:
  https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV200002

Mozilla Firefox: version 68.11.
The version 68.11 is fixed:
  https://www.mozilla.org/

Mozilla Firefox: version 78.1.
The version 78.1 is fixed:
  https://www.mozilla.org/

Mozilla Firefox: version 79.
The version 79 is fixed:
  https://www.mozilla.org/

openSUSE Leap 15.1: new chromium packages (04/05/2020).
New packages are available:
  openSUSE Leap 15.1: chromium 81.0.4044.129-lp151.2.85.1

openSUSE Leap 15.1: new chromium packages (18/06/2020).
New packages are available:
  openSUSE Leap 15.1: chromium 83.0.4103.97-lp151.2.96.1

openSUSE Leap 15.1: new MozillaFirefox packages.
New packages are available:
  openSUSE Leap 15.1: MozillaFirefox 78.1.0-lp151.2.61.1

openSUSE Leap 15.1: new MozillaThunderbird packages.
New packages are available:
  openSUSE Leap 15.1: MozillaThunderbird 68.11.0-lp151.2.47.1

openSUSE Leap 15.1: new opera packages.
New packages are available:
  openSUSE Leap 15.1: opera 68.0.3618.63-lp151.2.15.1

openSUSE Leap 15.2: new MozillaFirefox packages (07/08/2020).
New packages are available:
  openSUSE Leap 15.2: MozillaFirefox 78.1.0-lp152.2.12.1

openSUSE Leap 15.2: new MozillaFirefox packages (13/08/2020).
New packages are available:
  openSUSE Leap 15.2: MozillaFirefox 78.1.0-lp152.2.15.1

openSUSE Leap 15.2: new MozillaThunderbird packages.
New packages are available:
  openSUSE Leap 15.2: MozillaThunderbird 68.11.0-lp152.2.7.1

Opera: version 68.0.3618.63.
The version 68.0.3618.63 is fixed.

Oracle Solaris: patch for third party software of July 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 6.10: new firefox packages.
New packages are available:
  RHEL 6.10: firefox 68.11.0-1.el6_10

RHEL 6: new chromium-browser packages.
New packages are available:
  RHEL 6.10: chromium-browser 81.0.4044.122-1.el6_10

RHEL 7.8: new firefox packages.
New packages are available:
  RHEL 7.8: firefox 68.11.0-1.el7_8

RHEL 8.0: new firefox packages.
New packages are available:
  RHEL 8.0: firefox 68.11.0-1.el8_0

RHEL 8.1: new firefox packages.
New packages are available:
  RHEL 8.1: firefox 68.11.0-1.el8_1

RHEL 8.2: new firefox packages.
New packages are available:
  RHEL 8.2: firefox 68.11.0-1.el8_2

RHEL: new thunderbird packages.
New packages are available:
  RHEL 6.10: thunderbird 68.11.0-1.el6_10
  RHEL 7.8: thunderbird 68.11.0-1.el7_8
  RHEL 8.0: thunderbird 68.11.0-1.el8_0
  RHEL 8.1: thunderbird 68.11.0-1.el8_1
  RHEL 8.2: thunderbird 68.11.0-1.el8_2

Slackware: new mozilla-firefox packages.
New packages are available:
  Slackware 14.2: mozilla-firefox 68.11.0esr-*-1_slack14.2

Slackware: new mozilla-thunderbird packages.
New packages are available:
  Slackware 14.2: mozilla-thunderbird 68.11.0-*-1_slack14.2

SUSE LE 11 SP4: new MozillaFirefox packages.
New packages are available:
  SUSE LE 11 SP4: MozillaFirefox 78.1.0-78.87.1

SUSE LE 12: new MozillaFirefox packages.
New packages are available:
  SUSE LE 12 SP2: MozillaFirefox 78.1.0-112.8.1
  SUSE LE 12 SP3: MozillaFirefox 78.1.0-112.8.1
  SUSE LE 12 SP4: MozillaFirefox 78.1.0-112.8.1
  SUSE LE 12 SP5: MozillaFirefox 78.1.0-112.8.1

SUSE LE 15 SP1-2: new MozillaThunderbird packages.
New packages are available:
  SUSE LE 15 SP1: MozillaThunderbird 68.11.0-3.91.1
  SUSE LE 15 SP2: MozillaThunderbird 68.11.0-3.91.1

SUSE LE 15 SP1: new chromium packages.
New packages are available:
  SUSE LE 15 SP1: chromium 81.0.4044.129-bp151.3.79.1

SUSE LE 15 SP1: new MozillaFirefox packages.
New packages are available:
  SUSE LE 15 SP1: MozillaFirefox 78.1.0-3.100.2

SUSE LE 15 SP2: new MozillaFirefox packages.
New packages are available:
  SUSE LE 15 SP2: MozillaFirefox 78.1.0-8.3.1

Ubuntu: new firefox packages.
New packages are available:
  Ubuntu 20.04 LTS: firefox 79.0+build1-0ubuntu0.20.04.1
  Ubuntu 18.04 LTS: firefox 79.0+build1-0ubuntu0.18.04.1
  Ubuntu 16.04 LTS: firefox 79.0+build1-0ubuntu0.16.04.2
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