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CVE-2020-10769

5.5 · MEDIUM

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.

Published Jun 26, 2020CWE-125EPSS 0.51%

Overview

CVE-2020-10769 is a medium-severity vulnerability. It was published on June 26, 2020 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlRefbugzilla.redhat.com/show_bug.cgi?id=1708775%3BReflkml.org/lkml/2019/1/21/675Refwww.oracle.com/security-alerts/cpuApr2021.htmlReflists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlRefbugzilla.redhat.com/show_bug.cgi?id=1708775%3BReflkml.org/lkml/2019/1/21/675Refwww.oracle.com/security-alerts/cpuApr2021.html

How CyberStrike helps

Frequently asked questions

What is CVE-2020-10769?

CVE-2020-10769 is a medium-severity vulnerability. It was published on June 26, 2020 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2020-10769?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-10769?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-10769?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-10769 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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