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Vulnerability of Apache httpd: privilege escalation via Scoreboard

Synthesis of the vulnerability 

An attacker can bypass restrictions via Scoreboard of Apache httpd, in order to escalate his privileges.
Vulnerable products: Apache httpd, Apache httpd Modules ~ not comprehensive, Blue Coat CAS, Broadcom Content Analysis, Debian, Fedora, HP-UX, Rational ClearCase, WebSphere AS Traditional, Junos Space, openSUSE Leap, Oracle Communications, Oracle Fusion Middleware, Oracle Identity Management, WebLogic, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Ubuntu.
Severity of this weakness: 3/4.
Creation date: 02/04/2019.
Références of this bulletin: CERTFR-2019-AVI-141, cpuapr2020, cpujul2019, CVE-2019-0211, DSA-4422-1, FEDORA-2019-a4ed7400f4, HPESBUX03950, ibm10880413, ibm10885680, JSA11023, openSUSE-SU-2019:1190-1, openSUSE-SU-2019:1209-1, openSUSE-SU-2019:1258-1, RHSA-2019:0746-01, SSA:2019-096-01, SUSE-SU-2019:0873-1, SUSE-SU-2019:0878-1, SUSE-SU-2019:0888-1, SUSE-SU-2019:0888-2, SUSE-SU-2019:0889-1, SYMSA16056, Synology-SA-19:14, USN-3937-1, VIGILANCE-VUL-28914.

Description of the vulnerability 

An attacker can bypass restrictions via Scoreboard of Apache httpd, in order to escalate his privileges.
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This weakness note impacts software or systems such as Apache httpd, Apache httpd Modules ~ not comprehensive, Blue Coat CAS, Broadcom Content Analysis, Debian, Fedora, HP-UX, Rational ClearCase, WebSphere AS Traditional, Junos Space, openSUSE Leap, Oracle Communications, Oracle Fusion Middleware, Oracle Identity Management, WebLogic, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Ubuntu.

Our Vigil@nce team determined that the severity of this threat note is important.

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer weakness.

Solutions for this threat 

Apache httpd: version 2.4.39.
The version 2.4.39 is fixed:
  https://httpd.apache.org/download.cgi

Broadcom Content Analysis: solution for Apache HTTP Server.
The solution is indicated in information sources.

Debian 9: new apache2 packages.
New packages are available:
  Debian 9: apache2 2.4.25-3+deb9u7

Fedora 28: new httpd packages.
New packages are available:
  Fedora 28: httpd 2.4.39-1.1.fc28

HP-UX Apache-based Web Server: version B.2.4.18.05.
The version B.2.4.18.05 is fixed:
  https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXWSSUITE
  https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXWSATW508

IBM Rational ClearCase: fixed versions for Apache httpd.
Fixed versions are indicated in information sources.
This update is the same then the one referenced in VIGILANCE-SOL-65296.

IBM WebSphere Application Server Traditional: fixed versions for Apache httpd.
Fixed versions are indicated in information sources.

Junos Space: version 20.1R1.
The version 20.1R1 is fixed:
  https://www.juniper.net/support/downloads/

openSUSE Leap 15.0: new apache2 packages.
New packages are available:
  openSUSE Leap 15.0: apache2 2.4.33-lp150.2.17.1

openSUSE Leap 42.3: new apache2 packages.
New packages are available:
  openSUSE Leap 42.3: apache2 2.4.23-49.1

Oracle Communications: CPU of April 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2647690.1
  https://support.oracle.com/rs?type=doc&id=2654603.1
  https://support.oracle.com/rs?type=doc&id=2652618.1
  https://support.oracle.com/rs?type=doc&id=2653087.1
  https://support.oracle.com/rs?type=doc&id=2653688.1
  https://support.oracle.com/rs?type=doc&id=2652610.1
  https://support.oracle.com/rs?type=doc&id=2653279.1
  https://support.oracle.com/rs?type=doc&id=2652619.1
  https://support.oracle.com/rs?type=doc&id=2652621.1
  https://support.oracle.com/rs?type=doc&id=2652606.1
  https://support.oracle.com/rs?type=doc&id=2653691.1
  https://support.oracle.com/rs?type=doc&id=2653692.1
  https://support.oracle.com/rs?type=doc&id=2647687.1
  https://support.oracle.com/rs?type=doc&id=2652622.1

Oracle Fusion Middleware: CPU of July 2019.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2534806.1

RHEL: new httpd24-httpd packages.
New packages are available:
  RHEL 6: httpd24-httpd 2.4.34-7.el6.1
  RHEL 7: httpd24-httpd 2.4.34-7.el7.1

Slackware: new httpd packages.
New packages are available:
  Slackware 14.0: httpd 2.4.39-*-1_slack14.0
  Slackware 14.1: httpd 2.4.39-*-1_slack14.1
  Slackware 14.2: httpd 2.4.39-*-1_slack14.2

SUSE LE 12: new apache2 packages.
New packages are available:
  SUSE LE 12 RTM: apache2 2.4.10-14.36.1
  SUSE LE 12 SP1: apache2 2.4.16-20.24.1
  SUSE LE 12 SP2: apache2 2.4.23-29.40.1
  SUSE LE 12 SP3: apache2 2.4.23-29.40.1
  SUSE LE 12 SP4: apache2 2.4.23-29.40.1

SUSE LE 15: new apache2 packages.
New packages are available:
  SUSE LE 15 RTM: apache2 2.4.33-3.15.1

Synology DSM Apache HTTP Server: version 2.4.39-0014.
The version 2.4.39-0014 is fixed:
  https://www.synology.com/

Ubuntu: new apache2-bin packages.
New packages are available:
  Ubuntu 18.10: apache2-bin 2.4.34-1ubuntu2.1
  Ubuntu 18.04 LTS: apache2-bin 2.4.29-1ubuntu4.6
  Ubuntu 16.04 LTS: apache2-bin 2.4.18-2ubuntu3.10
  Ubuntu 14.04 LTS: apache2-bin 2.4.7-1ubuntu4.22
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