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CVE-2020-8835 PUBLISHED

In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)

EPSS 26.05% · 96.2th percentile

Risk Scores

EPSS Score
26.05%
96.2th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSlinux-gcp-5.35.3.0-1012.13~18.04.1, 5.3.0-1014.15~18.04.1, 0
Ubuntu:18.04:LTSlinux-azure-edge4.18.0-1008.8~18.04.1, 0, 4.18.0-1006.6~18.04.1
Ubuntu:18.04:LTSlinux-raspi2-5.30, 5.3.0-1017.19~18.04.1, 5.3.0-1018.20~18.04.1
Ubuntu:18.04:LTSlinux-azure-5.35.3.0-1007.8~18.04.1, 5.3.0-1008.9~18.04.1, 5.3.0-1009.10~18.04.1
Ubuntu:18.04:LTSlinux-oracle-5.35.3.0-1011.12~18.04.1, 0
Ubuntu:18.04:LTSlinux-gke-5.30, 5.3.0-1011.12~18.04.1, 5.3.0-1012.13~18.04.1
Ubuntu:18.04:LTSlinux-hwe5.3.0-42.34~18.04.1, 0, 4.18.0-13.14~18.04.1
Ubuntu:18.04:LTSlinux-gcp-edge0, 4.18.0-1004.5~18.04.1, 4.18.0-1005.6~18.04.1
Ubuntu:20.04:LTSlinux-raspi25.4.0-1006.6, 0, 5.3.0-1007.8
Ubuntu:18.04:LTSlinux-hwe-edge5.3.0-22.24~18.04.1, 5.3.0-23.25~18.04.1, 5.3.0-23.25~18.04.2

Timeline

References

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