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Vulnerability of LibGD: use after free via gdImagePtr

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via gdImagePtr() of LibGD, in order to trigger a denial of service, and possibly to run code.
Impacted products: Debian, Fedora, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 31/01/2019.
Références of this threat: CVE-2019-6978, DLA-1651-1, DSA-4384-1, FEDORA-2019-7a06c0e6b4, FEDORA-2019-ab7d22a466, FEDORA-2019-d7f8995451, openSUSE-SU-2019:0207-1, openSUSE-SU-2019:1140-1, openSUSE-SU-2019:1148-1, RHSA-2019:2722-01, SSA:2020-083-01, SUSE-SU-2019:0333-1, SUSE-SU-2019:0747-1, SUSE-SU-2019:0771-1, SUSE-SU-2019:13961-1, USN-3900-1, VIGILANCE-VUL-28413.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via gdImagePtr() of LibGD, in order to trigger a denial of service, and possibly to run code.
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This computer weakness note impacts software or systems such as Debian, Fedora, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security bulletin 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 announce.

Solutions for this threat 

Debian 8: new libgd2 packages.
New packages are available:
  Debian 8: libgd2 2.1.0-5+deb8u12

Debian 9: new libgd2 packages.
New packages are available:
  Debian 9: libgd2 2.2.4-2+deb9u4

Fedora: new gd packages.
New packages are available:
  Fedora 29: gd 2.2.5-8.fc29
  Fedora 30: gd 2.2.5-9.fc30
  Fedora 31: gd 2.2.5-10.fc31

openSUSE Leap 15.0: new gd packages.
New packages are available:
  openSUSE Leap 15.0: gd 2.2.5-lp150.8.1

openSUSE Leap 42.3: new gd packages.
New packages are available:
  openSUSE Leap 42.3: gd 2.1.0-30.1

openSUSE Leap 42.3: new php7 packages (19/02/2019).
New packages are available:
  openSUSE Leap 42.3: apache2-mod_php7 7.0.7-55.1, php7 7.0.7-55.1

Oracle Solaris: patch for third party software of October 2019 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 8.0: new libwmf packages.
New packages are available:
  RHEL 8: libwmf 0.2.9-8.el8_0

Slackware: new gd packages.
New packages are available:
  Slackware 14.2: gd 2.3.0-*-1_slack14.2

SUSE LE 11 SP4: new php53 packages.
New packages are available:
  SUSE LE 11 SP4: apache2-mod_php53 5.3.17-112.53.1, php53 5.3.17-112.53.1

SUSE LE 12: new php7 packages.
New packages are available:
  SUSE LE 12 RTM-SP4: apache2-mod_php7 7.0.7-50.63.1, php7 7.0.7-50.63.1

SUSE LE 12 SP3/4: new gd packages.
New packages are available:
  SUSE LE 12 SP4: gd 2.1.0-24.12.1
  SUSE LE 12 SP3: gd 2.1.0-24.12.1

SUSE LE 15: new gd packages.
New packages are available:
  SUSE LE 15 RTM: gd 2.2.5-4.6.1

Ubuntu: new libgd3 packages.
New packages are available:
  Ubuntu 18.10: libgd3 2.2.5-4ubuntu1.1
  Ubuntu 18.04 LTS: libgd3 2.2.5-4ubuntu0.3
  Ubuntu 16.04 LTS: libgd3 2.1.1-4ubuntu0.16.04.11
  Ubuntu 14.04 LTS: libgd3 2.1.0-3ubuntu0.11

Wind River Linux: solution (21/05/2019).
The solution is indicated in information sources.
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