Description
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.24.0 and prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, `NewDataBuilder` in `provisionersdk/proto/dataupload.go` allocated a byte slice using the client-supplied `FileSize` from a `DataUpload` message without an upper-bound check. Although the DRPC wire limit is 4 MiB, the `FileSize` value itself was unconstrained. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 validates `FileSize` against an upper bound (`MaxFileSize = 100 MiB`) before allocation. As a workaround, restrict access to the provisioner daemon serve endpoint to trusted provisioner daemon service accounts.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
coder coder
>= 2.34.0, < 2.34.2affected>= 2.33.0, < 2.33.8affected>= 2.30.0, < 2.32.7affected>= 2.24.0, < 2.29.17affected
References
- https://github.com/coder/coder/security/advisories/GHSA-f962-qm93-mj4c ↗
- https://github.com/coder/coder/pull/25710 ↗
- https://github.com/coder/coder/releases/tag/v2.29.17 ↗
- https://github.com/coder/coder/releases/tag/v2.32.7 ↗
- https://github.com/coder/coder/releases/tag/v2.33.8 ↗
- https://github.com/coder/coder/releases/tag/v2.34.2 ↗