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Vulnerability of libcurl: information disclosure via Auto Referer Header Credentials

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Auto Referer Header Credentials of libcurl, in order to obtain sensitive information.
Impacted products: cURL, Debian, Fedora, openSUSE Leap, Puppet, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 31/03/2021.
Références of this threat: CVE-2021-22876, DSA-4881-1, FEDORA-2021-26a293c72b, FEDORA-2021-cab5c9befb, openSUSE-SU-2021:0510-1, SSA:2021-090-01, SUSE-SU-2021:1006-1, SUSE-SU-2021:1396-1, SUSE-SU-2021:14707-1, USN-4898-1, USN-4903-1, VIGILANCE-VUL-34977.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Auto Referer Header Crede...
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This weakness announce impacts software or systems such as cURL, Debian, Fedora, openSUSE Leap, Puppet, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability alert 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 computer threat announce.

Solutions for this threat 

Patches for this vulnerability are not yet public.
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