CVE-2021-31615 PUBLISHED

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 0.14% · 33.7th percentile

Risk Scores

EPSS Score
0.14%
33.7th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:20.04:LTSlinux-oracle5.4.0-1037.40, 5.4.0-1034.36, 5.4.0-1032.34
Ubuntu:16.04:LTSlinux-hwe-edge0, 4.8.0-28.30~16.04.1, 4.8.0-30.32~16.04.1
Ubuntu:20.04:LTSlinux-gkeop-5.155.15.0-1025.30~20.04.1, 0, 5.15.0-1003.5~20.04.2
Ubuntu:22.04:LTSlinux-intel-iot-realtime0, 5.15.0-1073.75
Ubuntu:Pro:20.04:LTSlinux-gcp5.4.0-1132.141, 5.4.0-1131.140, 5.4.0-1130.139
Ubuntu:24.04:LTSlinux-riscv6.8.0-50.51.1, 6.8.0-36.36.1, 6.8.0-38.38.1
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-azure-fips5.15.0-1053.61+fips1, 0
Ubuntu:20.04:LTSlinux-aws-5.85.8.0-1038.40~20.04.1, 5.8.0-1042.44~20.04.1, 5.8.0-1041.43~20.04.1
Ubuntu:25.10linux-gcp6.17.0-1001.1, 6.16.0-1001.1, 6.14.0-1009.9+25.10.1
Ubuntu:Pro:16.04:LTSlinux-kvm4.4.0-1079.86, 4.4.0-1134.144, 4.4.0-1132.142
Ubuntu:Pro:18.04:LTSlinux-aws-5.45.4.0-1056.59~18.04.1, 5.4.0-1058.61~18.04.3, 5.4.0-1127.137~18.04.2
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1023.24~22.04.1, 6.8.0-1037.38~22.04.1, 6.8.0-1035.36~22.04.1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-17.17.1.1.1~22.04.1, 6.5.0-15.15.1.1~22.04.1, 6.5.0-45.45.1~22.04.1
Ubuntu:Pro:20.04:LTSlinux-hwe-5.155.15.0-101.111~20.04.1, 0, 5.15.0-33.34~20.04.1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1014.16~22.04.1, 6.8.0-1015.17~22.04.2, 6.8.0-1017.20~22.04.1
Ubuntu:Pro:20.04:LTSlinux-ibm5.4.0-1076.81, 5.4.0-1075.80, 5.4.0-1074.79
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1011.11~24.04.1, 6.14.0-1012.12~24.04.1, 6.14.0-1018.18~24.04.1
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1018.18~22.04.1, 6.5.0-1019.19~22.04.1, 6.5.0-1020.20~22.04.1
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1011.11~22.04.1, 6.5.0-1024.24~22.04.1, 6.5.0-1010.10~22.04.1
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1023.24, 6.5.0-1022.23, 6.5.0-1020.21

…and 219 more

Timeline

References

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