Summary
Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and
Yuval Yarom discovered that Libgcrypt was susceptible to an attack via
side channels. A local attacker could use this attack to recover RSA
private keys. (CVE-2017-7526)
It was discovered that Libgcrypt was susceptible to an attack via
side channels. A local attacker could use this attack to possibly recover
EdDSA private keys. This issue only applied to Ubuntu 16.04 LTS, Ubuntu
16.10 and Ubuntu 17.04. (CVE-2017-9526)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | libgcrypt11 | 1.5.3-2ubuntu4.5 |
| Ubuntu · 16.04 LTS 16.04:LTS | libgcrypt20 | 1.6.5-2ubuntu0.3 |
Vulnerabilities 2
-
Medium 6.1
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024…
-
Unscored —
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signi…