High · published October 10, 2019
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
| Product | Versions | Fixed in |
|---|---|---|
| openbsd/openssh | ≥ 7.7, ≤ 7.9 | — |
| openbsd/openssh | ≥ 8.0, < 8.1 | 8.1 |
| netapp/cloud_backup | all versions | — |
| netapp/steelstore_cloud_integrated_storage | all versions | — |
| siemens/scalance_x204rna_firmware | < 3.2.7 | 3.2.7 |
| siemens/scalance_x204rna_ecc_firmware | < 3.2.7 | 3.2.7 |