CVE-2020-15780
Advisory lineage Upstream: 0 Downstream: 35
Modified
Published: 15 Jul 2020, 21:24
Last modified:04 Aug 2024, 13:22
Vulnerability Summary
Overall Risk (default)
medium
29/100 CVSS Score
7.2 HIGH
v2.0 (nvd)
EPSS Score
0.69% LOW
1% probability +0.24%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
15 Jul 2020, 21:24
Published
Vulnerability first disclosed
04 Aug 2024, 13:22
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 0.69%• Percentile: 72%
Techniques & Countermeasures
- CWE-862•Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Affected Systems
- canonical•ubuntu_linux
16.04 | 18.04 | 20.04
- linux•linux_kernel
< 5.7.7
- opensuse•leap
15.1 | 15.2
References (14)
- https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.sh
- https://www.openwall.com/lists/oss-security/2020/06/15/3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=75b0cea7bf307f362057cc778efe89af4c615354
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.7
- 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/2020/07/30/3
- http://www.openwall.com/lists/oss-security/2020/07/30/2
- https://usn.ubuntu.com/4425-1/
- https://usn.ubuntu.com/4439-1/
- https://usn.ubuntu.com/4426-1/
- https://usn.ubuntu.com/4440-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html