Vulnerability Details : CVE-2019-12904

** 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.

Published 2019-06-20 00:15:11

Updated 2021-07-21 11:39:24

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2019-12904

Probability of exploitation activity in the next 30 days: 0.14%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 49 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-12904

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.9	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	2.2	3.6	nvd@nist.gov
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2019-12904

CWE-668 Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-12904

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00049.html

[security-announce] openSUSE-SU-2019:1792-1: moderate: Security update f
Mailing List;Third Party Advisory
https://dev.gnupg.org/T4541

⚓ T4541 C implementation of AES is vulnerable to side-channel attacks
Third Party Advisory
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E

[jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar - Pony Mail
Mailing List;Third Party Advisory

CVEs referencing this url
https://github.com/gpg/libgcrypt/commit/daedbbb5541cd8ecda1459d3b843ea4d92788762

AES: move look-up tables to .data section and unshare between processes · gpg/libgcrypt@daedbbb · GitHub
Patch;Third Party Advisory
https://github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020

GCM: move look-up table to .data section and unshare between processes · gpg/libgcrypt@a4c561a · GitHub
Patch;Third Party Advisory

Products affected by CVE-2019-12904

Gnupg » Libgcrypt » Version: 1.8.4
cpe:2.3:a:gnupg:libgcrypt:1.8.4:*:*:*:*:*:*:*
Matching versions
Opensuse » Leap » Version: 15.0
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
Matching versions