What’s Vulnerable › Vulnerabilities

CVE-2020-10769

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-06-26 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• openSUSE Leap: 15.1
• Red Hat Enterprise Linux: 7.0

References

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1708775%3B
• https://lkml.org/lkml/2019/1/21/675
• https://www.oracle.com/security-alerts/cpuApr2021.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1708775%3B
• https://lkml.org/lkml/2019/1/21/675
• https://www.oracle.com/security-alerts/cpuApr2021.html

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