VDB
CVE-2021-31615
CVE-2021-31615
PUBLISHED
CVSS 5.300000190734863 MEDIUM
Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.
EPSS 0.41% · 33.3th percentile
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.41%
33.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:20.04:LTS | linux-oracle | 5.4.0-1145.155, 5.4.0-1103.112, 5.4.0-1102.111 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.15.0-23.25~16.04.1, *, * |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 | *, *, * |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 0, 5.15.0-1073.75 |
| Ubuntu:Pro:20.04:LTS | linux-gcp | 5.4.0-1086.94, 5.4.0-1111.120, 5.4.0-1146.155 |
| Ubuntu:24.04:LTS | linux-riscv | 6.8.0-55.57.1, 6.8.0-36.36.1, 6.8.0-39.39.1 |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-azure-fips | 5.15.0-1053.61+fips1, 0 |
| Ubuntu:20.04:LTS | linux-aws-5.8 | 5.8.0-1038.40~20.04.1, 0, * |
| Ubuntu:25.10 | linux-gcp | 6.17.0-1001.1, 6.17.0-1002.2, 6.17.0-1003.3 |
| Ubuntu:Pro:16.04:LTS | linux-kvm | 4.4.0-1040.46, 4.4.0-1041.47, 4.4.0-1043.49 |
| Ubuntu:Pro:18.04:LTS | linux-aws-5.4 | 5.4.0-1093.102~18.04.2, 5.4.0-1112.121~18.04.2, 5.4.0-1113.123~18.04.1 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1016.17~22.04.1, 6.8.0-1010.10~22.04.1, 6.8.0-1008.8~22.04.1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | 0, 6.5.0-26.26.1~22.04.1, * |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.15 | 5.15.0-113.123~20.04.1, 5.15.0-106.116~20.04.1, 5.15.0-153.163~20.04.1 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1041.47~22.04.1, *, 6.8.0-1044.50~22.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-ibm | 5.4.0-1032.36, 0, 5.4.0-1003.4 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | 6.14.0-1009.9~24.04.1, 6.14.0-1010.10~24.04.1, 6.14.0-1012.12~24.04.1 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | *, 6.5.0-1027.27~22.04.1, 6.5.0-1025.25~22.04.1 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | 6.5.0-1008.8~22.04.1, 6.5.0-1011.11~22.04.1, 6.5.0-1012.12~22.04.1 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 6.5.0-1014.15, 6.5.0-1015.16, 6.5.0-1018.19 |
…and 219 more
Timeline
- Jun 25, 2021 CVE Published
- Jun 26, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 26, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 25, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 27, 2022 EPSS Score
- Jun 27, 2022 EPSS Score
- Aug 28, 2022 EPSS Score
- Oct 28, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-31615 advisory
- https://bluetooth.com third-party-advisory
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/injectable/ third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-31615 third-party-advisory