CVE-2019-12904
First published: Wed Jun 19 2019(Updated: )
** DISPUTED ** 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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GnuPG Libgcrypt | =1.8.4 | |
| openSUSE Leap | =15.0 | |
| =1.8.4 | ||
| =15.0 |
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Reference Links
- 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@%3Cdev.mina.apache.org%3E
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
Frequently Asked Questions
What is CVE-2019-12904?
CVE-2019-12904 is a vulnerability in Libgcrypt 1.8.4, where the C implementation of AES is vulnerable to a flush-and-reload side-channel attack.
What is the severity of CVE-2019-12904?
The severity of CVE-2019-12904 is medium with a severity value of 5.9.
Which software versions are affected by CVE-2019-12904?
Libgcrypt version 1.8.4 is affected by CVE-2019-12904, along with GnuPG Libgcrypt and openSUSE Leap 15.0.
How can I fix CVE-2019-12904?
Update GnuPG Libgcrypt to a version that is not vulnerable, and apply patches provided by the vendor if available.
Where can I find more information about CVE-2019-12904?
You can find more information about CVE-2019-12904 on the following references: http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00049.html, https://dev.gnupg.org/T4541, https://github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020.
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