Total vulnerabilities in the database
The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.13-rc1 | 5.13-rc1.x |
| linux / linux_kernel | 5.13-rc2 | 5.13-rc2.x |
| linux / linux_kernel | 5.11 | 5.11.21 |
| linux / linux_kernel | 5.12 | 5.12.4 |
| linux / linux_kernel | 5.13 | 5.13.x |
| linux / linux_kernel | 5.13-rc3 | 5.13-rc3.x |
| linux / linux_kernel | 5.8 | 5.10.37 |
| canonical / ubuntu_linux | 20.04 | 20.04.x |
| canonical / ubuntu_linux | 20.10 | 20.10.x |
| canonical / ubuntu_linux | 21.04 | 21.04.x |