| Package | Affected versions | Patched versions |
|---|---|---|
| libgcrypt | ≥ 1.8.0, < 1.8.3< 1.7.10 | 1.8.31.7.10 |
| traffic director | = 11.1.1.9.0 | |
| ansible tower | = 3.3 |
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
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