What’s Vulnerable › Vulnerabilities

CVE-2020-15780

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-07-15 · updated 2026-06-17
• Weakness: CWE-862

Description

An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 20.04
• Linux kernel: before 5.7.7 — fixed in 5.7.7
• openSUSE Leap: 15.1, 15.2

How to fix

Upgrade to a fixed version: Linux kernel 5.7.7. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html
• http://www.openwall.com/lists/oss-security/2020/07/20/7
• http://www.openwall.com/lists/oss-security/2020/07/29/3
• http://www.openwall.com/lists/oss-security/2020/07/30/2
• http://www.openwall.com/lists/oss-security/2020/07/30/3
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.7
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=75b0cea7bf307f362057cc778efe89af4c615354
• https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.sh
• https://usn.ubuntu.com/4425-1/
• https://usn.ubuntu.com/4426-1/
• https://usn.ubuntu.com/4439-1/

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