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Vulnerability of Apache Subversion: NULL pointer dereference via svnserve construct_server_baton

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via svnserve construct_server_baton() of Apache Subversion, in order to trigger a denial of service.
Impacted systems: Subversion, Debian, Fedora, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 3/4.
Creation date: 01/08/2019.
Références of this alert: bulletinoct2019, CVE-2019-0203, DLA-1903-1, DSA-4490-1, FEDORA-2019-f6bc68e455, openSUSE-SU-2019:1910-1, RHSA-2019:2512-01, SUSE-SU-2019:2031-1, SUSE-SU-2019:2032-1, USN-4082-1, VIGILANCE-VUL-29921.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via svnserve construct_server_baton() of Apache Subversion, in order to trigger a denial of service.
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This computer vulnerability bulletin impacts software or systems such as Subversion, Debian, Fedora, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

An attacker with a expert ability can exploit this threat note.

Solutions for this threat 

Apache Subversion: version 1.12.1.
The version 1.12.1 is fixed:
  http://subversion.apache.org/download.cgi

Apache Subversion: version 1.10.5.
The version 1.10.5 is fixed:
  http://subversion.apache.org/download.cgi

Apache Subversion: version 1.9.11.
The version 1.9.11 is fixed:
  http://subversion.apache.org/download.cgi

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

Debian 8: new subversion packages.
New packages are available:
  Debian 8: subversion 1.8.10-6+deb8u7

Debian 9/10: new subversion packages.
New packages are available:
  Debian 9: subversion 1.9.5-1+deb9u4
  Debian 10: subversion 1.10.4-1+deb10u1

Fedora 30: new subversion packages.
New packages are available:
  Fedora 30: subversion 1.12.2-1.fc30

openSUSE Leap: new subversion packages.
New packages are available:
  openSUSE Leap 15.0: subversion 1.10.6-lp150.7.1
  openSUSE Leap 15.1: subversion 1.10.6-lp151.4.3.1

Oracle Solaris: patch for third party software of October 2019 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 8: new subversion-1.10 module.
The following module is updated:
  RHEL 8 Module: subversion:1.10

SUSE LE 12 SP4: new subversion packages.
New packages are available:
  SUSE LE 12 SP4: subversion 1.8.19-25.9.1

SUSE LE 15: new subversion packages.
New packages are available:
  SUSE LE 15 RTM: subversion 1.10.6-3.6.2
  SUSE LE 15 SP1: subversion 1.10.6-3.6.2

Ubuntu 16.04: new subversion packages.
New packages are available:
  Ubuntu 16.04 LTS: subversion 1.9.3-2ubuntu1.3

Wind River Linux: version 10.17.41.19.
The version 10.17.41.19 is fixed.
This bulletin fixes more than 100 vulnerabilities, but only the 100 recent vulnerabilities were associated to this bulletin.

Wind River Linux: version 10.18.44.12.
The version 10.18.44.12 is fixed:
  https://support2.windriver.com/
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