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Cryptographic Issues The advisory has been revoked - it doesn't affect any version of package libgcrypt20  (opens in a new tab)

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EPSS
0.32% (71st percentile)

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  • Snyk IDSNYK-UBUNTU1804-LIBGCRYPT20-455294
  • published23 Jun 2019
  • disclosed20 Jun 2019
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Introduced: 20 Jun 2019

CVE-2019-12904  (opens in a new tab)
CWE-310  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu.

In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack