VDB
CVE-2020-28588
CVE-2020-28588
PUBLISHED
CVSS 4 MEDIUM
An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.
EPSS 1.10% · 65.6th percentile
Risk Scores
CVSS 3.0
4
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score
1.10%
65.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | linux-gke | 0, 5.4.0-1035.37, 5.4.0-1033.35 |
| Ubuntu:18.04:LTS | linux-raspi-5.4 | 5.4.0-1018.20~18.04.1, 5.4.0-1026.29~18.04.1, 5.4.0-1016.17~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws-5.4 | 5.4.0-1032.33~18.04.1, 5.4.0-1028.29~18.04.1, 5.4.0-1029.30~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-5.4 | 5.4.0-60.67~18.04.1, 5.4.0-65.73~18.04.1, 5.4.0-56.62~18.04.1 |
| Ubuntu:18.04:LTS | linux-gke-5.4 | 5.4.0-1030.32~18.04.1, 5.4.0-1032.34~18.04.1, 5.4.0-1033.35~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1006.7~18.04.1, 4.18.0-1007.8~18.04.1, 4.18.0-1008.9~18.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 0, 5.4.0-1021.21+fips2 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 5.3.0-1019.21~18.04.1, 5.3.0-1017.18~18.04.1, 5.3.0-1016.17~18.04.1 |
| Ubuntu:20.04:LTS | linux-gcp | 5.4.0-1033.35, 5.4.0-1024.24, 5.4.0-1025.25 |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 5.4.0-1022.22~18.04.1, 5.4.0-1020.20~18.04.1, 5.4.0-1023.23~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1011.16, 5.0.0-1014.19, 0 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips | 5.4.0-1021.21+fips1, 0 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-26.30, 5.4.0-24.28, 5.4.0-28.32 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-azure-fips | 0, 5.4.0-1022.22+fips1 |
| Ubuntu:18.04:LTS | linux-hwe | 5.0.0-25.26~18.04.1, 5.3.0-72.68, 5.3.0-74.70 |
| Ubuntu:18.04:LTS | linux-oracle-5.4 | 5.4.0-1022.22~18.04.1, 5.4.0-1029.31~18.04.1, 5.4.0-1030.32~18.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 5.15.0-1073.75, 0 |
| Ubuntu:20.04:LTS | linux-oracle | 5.4.0-1032.34, 5.4.0-1035.38, 5.3.0-1007.8 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1007.8, 5.3.0-1014.16, 5.3.0-1015.17 |
| Ubuntu:20.04:LTS | linux-kvm | 5.4.0-1028.29, 5.4.0-1026.27, 5.4.0-1006.6 |
…and 25 more
Timeline
- Dec 4, 2020 CVE Published
- May 11, 2021 EPSS Score
- Jul 15, 2021 EPSS Score
- Sep 15, 2021 EPSS Score
- Nov 17, 2021 EPSS Score
- Jan 18, 2022 EPSS Score
- Mar 22, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 24, 2022 EPSS Score
- Jul 26, 2022 EPSS Score
- Sep 27, 2022 EPSS Score
- Nov 28, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-28588 advisory
- https://ubuntu.com/security/notices/USN-4750-1 advisory
- https://ubuntu.com/security/notices/USN-4751-1 advisory
- https://ubuntu.com/security/notices/USN-4752-1 advisory
- https://git.kernel.org/linus/4f134b89a24b965991e7c345b9a4591821f7c2a6 third-party-advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-28588 third-party-advisory