Summary
Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel
attack. A local attacker could possibly use this attack to recover ECDSA
private keys.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | libgcrypt11 | 1.5.3-2ubuntu4.6 |
| Ubuntu · 16.04 LTS 16.04:LTS | libgcrypt20 | 1.6.5-2ubuntu0.5 |
| Ubuntu · 18.04 LTS 18.04:LTS | libgcrypt20 | 1.8.1-4ubuntu1.1 |
Vulnerabilities 1
-
Unscored —
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 b…
References
-
report
https://ubuntu.com/security/CVE-2018-0495