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Vulnerability of GnuTLS: use after free via client_send_params

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via client_send_params of GnuTLS, in order to trigger a denial of service, and possibly to run code.
Impacted products: openSUSE Leap, SLES.
Severity of this bulletin: 3/4.
Creation date: 24/03/2021.
Références of this threat: CVE-2021-20232, openSUSE-SU-2021:0470-1, SUSE-SU-2021:0934-1, SUSE-SU-2021:0935-1, VIGILANCE-VUL-34935.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via client_send_params of...
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This security vulnerability impacts software or systems such as openSUSE Leap, SLES.

Our Vigil@nce team determined that the severity of this computer weakness bulletin 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 security note.

Solutions for this threat 

This vulnerability fix will be public soon.
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