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Vulnerability of Linux kernel: out-of-bounds memory reading via crypto_authenc_extractkeys

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via crypto_authenc_extractkeys() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Linux.
Severity of this threat: 1/4.
Creation date: 23/06/2020.
Références of this weakness: CVE-2020-10769, VIGILANCE-VUL-32606.

Description of the vulnerability 

An attacker can force a read at an invalid address via crypto_authenc_extractkeys() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
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This computer weakness bulletin impacts software or systems such as Linux.

Our Vigil@nce team determined that the severity of this computer threat announce is low.

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 announce.

Solutions for this threat 

Linux kernel: version 4.20.4.
The version 4.20.4 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.19.17.
The version 4.19.17 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.95.
The version 4.14.95 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.152.
The version 4.9.152 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.172.
The version 4.4.172 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.66.
The version 3.16.66 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/linux-3.16.66.tar.xz

Linux kernel: patch for crypto_authenc_extractkeys.
A patch is indicated in information sources.
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Computer vulnerabilities tracking service 

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