Vulnerability in containerd overlaybd

[ Description ]Official description

containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image…
• github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overl…
• github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40
• github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1b
• github.com/containerd/overlaybd/pull/438