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Vulnerability of Apache Subversion: NULL pointer dereference via mod_dav_svn

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via mod_dav_svn of Apache Subversion, in order to trigger a denial of service.
Vulnerable products: Subversion, Fedora, openSUSE Leap, SLES, Ubuntu.
Severity of this weakness: 3/4.
Creation date: 23/01/2019.
Références of this bulletin: CVE-2018-11803, FEDORA-2019-1f81367ac3, openSUSE-SU-2019:0153-1, SUSE-SU-2019:0195-1, USN-3869-1, VIGILANCE-VUL-28332.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via mod_dav_svn of Apache Subversion, in order to trigger a denial of service.
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This cybersecurity weakness impacts software or systems such as Subversion, Fedora, openSUSE Leap, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security vulnerability is important.

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 vulnerability bulletin.

Solutions for this threat 

Apache Subversion: version 1.11.1.
The version 1.11.1 is fixed:
  https://dist.apache.org/repos/dist/release/subversion/?p=32084

Apache Subversion: version 1.10.4.
The version 1.10.4 is fixed:
  https://dist.apache.org/repos/dist/release/subversion/?p=32084

Apache Subversion: patch for mod_dav_svn.
A patch is indicated in information sources.

Fedora 28: new subversion packages.
New packages are available:
  Fedora 28: subversion 1.11.1-1.fc28

openSUSE Leap 15.0: new subversion packages.
New packages are available:
  openSUSE Leap 15.0: subversion 1.10.0-lp150.2.3.1

SUSE LE 15: new subversion packages.
New packages are available:
  SUSE LE 15 RTM: subversion 1.10.0-3.3.1

Ubuntu: new subversion packages.
New packages are available:
  Ubuntu 18.10: subversion 1.10.0-2ubuntu2.1
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