VDB
CVE-2020-27170
CVE-2020-27170
PUBLISHED
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.
EPSS 0.15% · 35.5th percentile
Risk Scores
EPSS Score
0.15%
35.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | linux | 4.2.0-17.21, 4.4.0-11.26, 4.4.0-10.25 |
| Ubuntu:18.04:LTS | linux-gke-5.3 | 5.3.0-1034.36, 0, 5.3.0-1012.13~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi2-5.3 | 5.3.0-1019.21~18.04.1, 5.3.0-1018.20~18.04.1, 5.3.0-1021.23~18.04.1 |
| Ubuntu:20.04:LTS | linux-gcp | 5.4.0-1025.25, 5.4.0-1022.22, 5.4.0-1021.21 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 5.3.0-1017.18~18.04.1, *, * |
| Ubuntu:20.04:LTS | linux | 5.4.0-66.74, 5.4.0-62.70, 5.4.0-58.64 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-aws-fips | 0, 5.4.0-1021.21+fips2 |
| Ubuntu:16.04:LTS | linux-oracle | 4.15.0-1066.74~16.04.1, *, * |
| Ubuntu:Pro:FIPS:16.04:LTS | linux-fips | 4.4.0-1081.88, 4.4.0-1083.90, 4.4.0-1086.93 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 | 5.8.0-23.24~20.04.1, 5.8.0-45.51~20.04.1, * |
| Ubuntu:18.04:LTS | linux-snapdragon | 4.15.0-1096.105, 4.15.0-1095.104, 4.15.0-1094.103 |
| Ubuntu:22.04:LTS | linux-realtime | 0, 5.15.0-1032.35 |
| Ubuntu:20.04:LTS | linux-aws | 5.4.0-1028.29, 5.4.0-1025.25, 5.4.0-1024.24 |
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1064.69~14.04.1, *, * |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 6.8.0-2019.20, 0 |
| Ubuntu:18.04:LTS | linux-gkeop-5.4 | 0, 5.4.0-1001.1, 5.4.0-1003.3 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.8.0-28.30~16.04.1, 0, 4.15.0-22.24~16.04.1 |
| Ubuntu:18.04:LTS | linux | 4.15.0-13.14, 4.15.0-36.39, 4.15.0-38.41 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips | 0, 5.4.0-1021.21+fips1 |
| Ubuntu:20.04:LTS | linux-oem-5.10 | 5.10.0-1017.18, 5.10.0-1016.17, 5.10.0-1014.15 |
…and 57 more
Exploit Intelligence
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
- CVE-2022-32250.yara (github-yara)
Timeline
- Mar 18, 2021 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-2020-27170 third-party-advisory
- https://www.openwall.com/lists/oss-security/2021/03/19/2 third-party-advisory
- https://ubuntu.com/security/notices/USN-4887-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4890-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27170 third-party-advisory
- Multiples vulnérabilités dans les produits Juniper advisory