VDB
CVE-2020-36691
CVE-2020-36691
PUBLISHED
CVSS 5.5 MEDIUM
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
EPSS 0.23% · 14.5th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.23%
14.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | linux-oracle-5.13 | 5.13.0-1016.20~20.04.1, 5.13.0-1015.19~20.04.1, 5.13.0-1011.13~20.04.2 |
| Ubuntu:20.04:LTS | linux-gcp | 5.4.0-1104.113, 5.4.0-1032.34, 5.4.0-1033.35 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1012.13, 5.13.0-1004.4, 5.13.0-1006.6+22.04.1 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1077.82, 4.15.0-1078.83, 4.15.0-1079.84 |
| Ubuntu:20.04:LTS | linux-oem-5.6 | 5.6.0-1026.26, 5.6.0-1056.60, 5.6.0-1055.59 |
| Ubuntu:20.04:LTS | linux-azure-fde | 5.4.0-1091.96+cvm1.1, 5.4.0-1063.66+cvm3.2, 5.4.0-1092.97+cvm1.1 |
| Ubuntu:Pro:18.04:LTS | linux-ibm-5.4 | 5.4.0-1014.15~18.04.1, 5.4.0-1032.36~18.04.1, 5.4.0-1031.35~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1028.29~18.04.1, 5.3.0-1022.23~18.04.1, 5.3.0-1020.21~18.04.1 |
| Ubuntu:Pro:18.04:LTS | linux-azure-5.4 | 5.4.0-1098.104~18.04.2, 5.4.0-1111.117~18.04.1, 5.4.0-1110.116~18.04.1 |
| Ubuntu:18.04:LTS | linux-gkeop-5.4 | 5.4.0-1037.38~18.04.1, 5.4.0-1036.37~18.04.1, 5.4.0-1034.35~18.04.1 |
| Ubuntu:20.04:LTS | linux-raspi | 5.4.0-1055.62, 5.4.0-1053.60, 5.4.0-1052.58 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 5.0.0-1027.30, 5.0.0-1025.28, 5.0.0-1024.27~18.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.8 | 0, 5.8.0-1036.38~20.04.1, 5.8.0-1043.46~20.04.1 |
| Ubuntu:20.04:LTS | linux-ibm | 5.4.0-1015.16, 5.4.0-1003.4, 5.4.0-1004.5 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.4.0-1006.6, 5.3.0-1017.19, 0 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 5.3.0-1016.18~18.04.1, 5.3.0-1024.26~18.04.1, 5.3.0-1027.29~18.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-azure-fips | 5.4.0-1022.22+fips1, 0 |
| Ubuntu:20.04:LTS | linux-aws-5.11 | 5.11.0-1009.9~20.04.2, 5.11.0-1019.20~20.04.1, 5.11.0-1014.15~20.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 5.4.0-1021.21+fips2, 0 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.10.0-19.21~16.04.1, 4.13.0-25.29~16.04.2, 4.13.0-21.24~16.04.1 |
…and 53 more
Timeline
- Mar 24, 2023 CVE Published
- Mar 25, 2023 EPSS Score
- May 3, 2023 EPSS Score
- Jun 11, 2023 EPSS Score
- Jul 20, 2023 EPSS Score
- Aug 27, 2023 EPSS Score
- Oct 5, 2023 EPSS Score
- Nov 13, 2023 EPSS Score
- Dec 22, 2023 EPSS Score
- Jan 30, 2024 EPSS Score
- Mar 9, 2024 EPSS Score
- Apr 17, 2024 EPSS Score
References
- https://git.kernel.org/linus/7690aa1cdf7c4565ad6b013b324c28b685505e24 third-party-advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-36691 third-party-advisory
- https://ubuntu.com/security/CVE-2020-36691 advisory
- https://github.com/torvalds/linux/commit/7690aa1cdf7c4565ad6b013b324c28b685505e24 fix
- https://ubuntu.com/security/notices/USN-6284-1 advisory
- https://ubuntu.com/security/notices/USN-6301-1 advisory
- https://ubuntu.com/security/notices/USN-6312-1 advisory
- https://ubuntu.com/security/notices/USN-6314-1 advisory
- https://ubuntu.com/security/notices/USN-6331-1 advisory
- https://ubuntu.com/security/notices/USN-6337-1 advisory