CVE-2020-10769 Information

Description

A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm’s module authenc. When a payload longer than 4 bytes and is not following 4-byte alignment boundary guidelines it causes a buffer over-read threat leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html https://bugzilla.redhat.com/show_bug.cgi?id=1708775; https://lkml.org/lkml/2019/1/21/675

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5