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CVE-2021-20320 PUBLISHED

A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.

EPSS 0.10% · 26.4th percentile

Risk Scores

EPSS Score
0.10%
26.4th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips4.15.0-2024.24, 4.15.0-2022.22, 4.15.0-2021.21
Ubuntu:20.04:LTSlinux-oem-5.65.6.0-1033.35, 5.6.0-1034.36, 5.6.0-1050.54
Ubuntu:18.04:LTSlinux4.15.0-144.148, 4.15.0-151.157, 4.15.0-153.160
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-aws-fips0, 5.4.0-1021.21+fips2
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:18.04:LTSlinux-gcp-4.154.15.0-1078.88, 4.15.0-1091.104, 4.15.0-1086.98
Ubuntu:18.04:LTSlinux-aws-5.35.3.0-1028.30~18.04.1, 5.3.0-1030.32~18.04.1, 5.3.0-1032.34~18.04.2
Ubuntu:20.04:LTSlinux-hwe-5.115.11.0-25.27~20.04.1, 5.11.0-46.51~20.04.1, 5.11.0-44.48~20.04.2
Ubuntu:Pro:FIPS:18.04:LTSlinux-azure-fips4.15.0-1002.2, 0
Ubuntu:Pro:14.04:LTSlinux-aws4.4.0-1010.10, 4.4.0-1011.11, 4.4.0-1012.12
Ubuntu:18.04:LTSlinux-gcp-5.35.3.0-1018.19~18.04.1, 5.3.0-1017.18~18.04.1, 5.3.0-1016.17~18.04.1
Ubuntu:18.04:LTSlinux-aws4.15.0-1099.106, 4.15.0-1011.11, 4.15.0-1010.10
Ubuntu:18.04:LTSlinux-gke-5.45.4.0-1029.31~18.04.1, 0, 5.4.0-1025.25~18.04.1
Ubuntu:18.04:LTSlinux-oracle4.15.0-1017.19, 4.15.0-1025.28, 4.15.0-1081.89
Ubuntu:Pro:FIPS:20.04:LTSlinux-fips5.4.0-1007.8, 0
Ubuntu:Pro:FIPS:18.04:LTSlinux-fips4.15.0-1011.12, 0
Ubuntu:20.04:LTSlinux5.4.0-29.33, 5.4.0-84.94, 5.4.0-81.91
Ubuntu:Pro:FIPS:18.04:LTSlinux-gcp-fips4.15.0-1001.1, 0
Ubuntu:18.04:LTSlinux-azure-5.45.4.0-1025.25~18.04.1, 5.4.0-1022.22~18.04.1, 5.4.0-1020.20~18.04.1

…and 69 more

Timeline

References

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