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Vulnerability of curl: information disclosure via HTTP Redirect DNS Password

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via HTTP Redirect DNS Password of curl, in order to obtain sensitive information.
Vulnerable software: cURL, Debian, Fedora, QRadar SIEM, openSUSE Leap, PHP, Slackware, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 24/06/2020.
Références of this computer vulnerability: 6409294, CERTFR-2020-AVI-423, CVE-2020-8169, DSA-4881-1, FEDORA-2020-55f1f7cb13, FEDORA-2020-6af1dd2936, FEDORA-2020-ad05132742, openSUSE-SU-2020:0883-1, SSA:2020-176-01, SUSE-SU-2020:1733-1, USN-4402-1, VIGILANCE-VUL-32617.

Description of the vulnerability 

An attacker can bypass access restrictions to data via HTTP Redirect DNS Password of curl, in order to obtain sensitive information.
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This cybersecurity alert impacts software or systems such as cURL, Debian, Fedora, QRadar SIEM, openSUSE Leap, PHP, Slackware, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness is medium.

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

An attacker with a expert ability can exploit this security weakness.

Solutions for this threat 

curl: version 7.71.0.
The version 7.71.0 is fixed:
  https://curl.haxx.se/download.html

curl: patch for HTTP Redirect DNS Password.
A patch is available:
  https://github.com/curl/curl/commit/600a8cded447cd

Debian 10: new curl packages.
New packages are available:
  Debian 10: curl 7.64.0-4+deb10u2

Fedora 31: new curl packages.
New packages are available:
  Fedora 31: curl 7.66.0-2.fc31

Fedora 32: new curl packages.
New packages are available:
  Fedora 32: curl 7.69.1-4.fc32

Fedora 32: new mingw-curl packages.
New packages are available:
  Fedora 32: mingw-curl 7.71.1-1.fc32

IBM QRadar SIEM: fixed versions for IBM Security QRadar Analyst Workflow.
Fixed versions are indicated in information sources.

openSUSE Leap 15.2: new curl packages.
New packages are available:
  openSUSE Leap 15.2: curl 7.66.0-lp152.3.3.1

PHP: version 7.2.32.
The version 7.2.32 is fixed:
  https://www.php.net/downloads
  https://windows.php.net/download

PHP: version 7.3.20.
The version 7.3.20 is fixed:
  https://www.php.net/downloads
  https://windows.php.net/download

PHP: version 7.4.8.
The version 7.4.8 is fixed:
  https://www.php.net/downloads
  https://windows.php.net/download

Slackware: new curl packages.
New packages are available:
  Slackware 14.0: curl 7.71.0-*-1_slack14.0
  Slackware 14.1: curl 7.71.0-*-1_slack14.1
  Slackware 14.2: curl 7.71.0-*-1_slack14.2

SUSE LE 15 SP2: new curl packages.
New packages are available:
  SUSE LE 15 SP2: curl 7.66.0-4.3.1

Ubuntu: new curl packages.
New packages are available:
  Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.1
  Ubuntu 19.10: curl 7.65.3-1ubuntu3.1
  Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.9
  Ubuntu 16.04 LTS: curl 7.47.0-1ubuntu2.15
  Ubuntu 14.04 ESM: curl 7.35.0-1ubuntu2.20+esm4
  Ubuntu 12.04 ESM: curl 7.22.0-3ubuntu4.28
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