CVE-2020-15780: canonical ubuntu_linux Missing Authorization
Vulnerability summary
CVE-2020-15780 is a high (CVSS 7.2) Missing Authorization vulnerability in canonical ubuntu_linux. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.9% of scored vulnerabilities.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 33 · Related 28Timeline
- 15-07-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability 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
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.37%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.37% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu41 products
- linux< 4.15.0-112.113 | < 5.4.0-42.46
- linux-aws< 4.15.0-1079.83 | < 5.4.0-1020.20
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1032.34~18.04.2
- linux-aws-fips< 4.15.0-2024.24 | All versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 20.04
Debian1 product
- linux< 5.7.10-1
Linux1 product
- linux_kernel< 5.7.7
Opensuse1 product
- leapEOL15.1 | 15.2
5 vendors · 45 products
References
22 links- git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.shX Refsource MISCREPORTPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2020/06/15/3X Refsource MISCREPORTMailing ListThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.7X Refsource MISCREPORTRelease NotesVendor Advisory
- www.openwall.com/lists/oss-security/2020/07/20/7Mailing ListX Refsource MLISTPatchThird Party Advisory
Show all 22 references
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
