VDB
CVE-2019-20908
CVE-2019-20908
PUBLISHED
An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.
EPSS 0.02% · 6.0th percentile
Risk Scores
EPSS Score
0.02%
6.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips | 4.15.0-1002.2, 0 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | *, *, * |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | *, 5.0.0-1014.19, * |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 6.8.0-2019.20, 0 |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 4.15.0-1089.99, 0, 4.15.0-1082.92 |
| Ubuntu:18.04:LTS | linux-gke-5.0 | 5.0.0-1030.31, 5.0.0-1042.43, 5.0.0-1035.36 |
| Ubuntu:18.04:LTS | linux-raspi2-5.3 | *, *, 5.3.0-1026.28~18.04.1 |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-gcp-fips | 0, 4.15.0-1001.1 |
| Ubuntu:20.04:LTS | linux-gke | 5.4.0-1068.71, 0, 5.4.0-1033.35 |
| Ubuntu:18.04:LTS | linux-azure-edge | 4.18.0-1007.7~18.04.1, 0, * |
| Ubuntu:18.04:LTS | linux-hwe-edge | *, 5.3.0-24.26~18.04.2, 5.0.0-20.21~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe | 0, 4.18.0-15.16~18.04.1, 4.18.0-16.17~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1013.13, *, * |
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1023.24~14.04.1, 4.15.0-1047.51~14.04.1, 0 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | *, *, 5.0.0-1027.30 |
| Ubuntu:16.04:LTS | linux-oracle | 4.15.0-1046.50~16.04.1, 4.15.0-1039.43~16.04.1, 4.15.0-1038.42~16.04.1 |
| Ubuntu:18.04:LTS | linux | 4.15.0-19.20, 4.15.0-15.16, 4.15.0-13.14 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 5.3.0-1023.25~18.04.1, 5.3.0-1017.18~18.04.1, 0 |
| Ubuntu:18.04:LTS | linux-aws | 4.15.0-1043.45, 4.15.0-1045.47, 4.15.0-1047.49 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 0, 5.15.0-1073.75 |
…and 26 more
Timeline
- Jul 15, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-20908 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/06/14/1 third-party-advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1957a85b0032a81e6482ca4aab883643b8dae06e third-party-advisory
- https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language.sh third-party-advisory
- https://mailarchives.bentasker.co.uk/Mirrors/OSSSec/2020/06-Jun/msg00035.html third-party-advisory
- https://ubuntu.com/security/notices/USN-4426-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4427-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4439-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4440-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20908 third-party-advisory