Medium · published December 6, 2022
curl can be told to parse a `.netrc` file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.
| Product | Versions | Fixed in |
|---|---|---|
| haxx/curl | ≥ 7.84.0, < 7.86.0 | 7.86.0 |
| netapp/clustered_data_ontap | all versions | — |
| netapp/h300s_firmware | all versions | — |
| netapp/h500s_firmware | all versions | — |
| netapp/h700s_firmware | all versions | — |
| netapp/h410s_firmware | all versions | — |
| apple/macos | < 12.6.3 | 12.6.3 |
| splunk/universal_forwarder | ≥ 8.2.0, < 8.2.12 | 8.2.12 |
| splunk/universal_forwarder | ≥ 9.0.0, < 9.0.6 | 9.0.6 |
| splunk/universal_forwarder | all versions | — |