CVE-2019-12904

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

CVSS 3.1

5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-25)

CWE

CWE-668

Published

2019-06-20

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• gnupg:libgcrypt
• opensuse:leap

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00049.html
• https://dev.gnupg.org/T4541
• https://github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020
• https://github.com/gpg/libgcrypt/commit/daedbbb5541cd8ecda1459d3b843ea4d92788762
• https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E

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