VDB
CVE-2020-29369
CVE-2020-29369
PUBLISHED
CVSS 7 HIGH
An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
EPSS 0.46% · 39.3th percentile
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.46%
39.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | linux-oem-5.6 | 5.6.0-1031.32, 5.6.0-1027.27, 5.6.0-1011.11 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1036.38, 5.0.0-1014.14~18.04.1, 0 |
| Ubuntu:20.04:LTS | linux-kvm | 5.3.0-1008.9, 5.4.0-1008.8, 5.4.0-1015.15 |
| Ubuntu:18.04:LTS | linux-hwe-5.4 | 5.4.0-39.43~18.04.1, 0, 5.4.0-42.46~18.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-gcp-fips | 5.4.0-1021.21+fips1, 0 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1008.9~18.04.1, 5.3.0-1009.10~18.04.1, 5.3.0-1010.11~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 5.0.0-1022.25~18.04.1, 0, 5.0.0-1021.24~18.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 5.4.0-1021.21+fips2, 0 |
| 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:18.04:LTS | linux-gcp-5.4 | 5.4.0-1021.21~18.04.1, 5.4.0-1019.19~18.04.2, 0 |
| Ubuntu:20.04:LTS | linux | 5.4.0-40.44, 0, 5.3.0-18.19 |
| Ubuntu:20.04:LTS | linux-aws | 5.4.0-1007.7, 5.4.0-1005.5, 5.4.0-1021.21 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-azure-fips | 5.4.0-1022.22+fips1, 0 |
| Ubuntu:20.04:LTS | linux-azure | 5.4.0-1022.22, 5.4.0-1019.19, 5.4.0-1016.16 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 0, 5.3.0-1030.32~18.04.1, 5.3.0-1027.29~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe | 0, 4.18.0-21.22~18.04.1, 5.3.0-72.68 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 0, 5.15.0-1073.75 |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 0, 5.4.0-1022.22~18.04.1, 5.4.0-1020.20~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp | 5.0.0-1021.21~18.04.1, 5.0.0-1025.26~18.04.1, 5.0.0-1026.27~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.4 | 5.4.0-1021.21~18.04.1, 5.4.0-1019.19~18.04.1, 0 |
…and 18 more
Timeline
- Nov 28, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Oct 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 7, 2022 EPSS Score
- Jul 9, 2022 EPSS Score
- Sep 12, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-29369 advisory
- https://ubuntu.com/security/notices/USN-4752-1 advisory
- https://git.kernel.org/linus/246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c third-party-advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2056 third-party-advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-29369 third-party-advisory