CVE-2019-15847
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator. This occurred because a volatile operation was not specified. For example, within a single execution of a program, the output of every __builtin_darn() call may be the same.
Overview
- CVE ID
- CVE-2019-15847
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-09-02T23:15:10
- Last Modified Date
- 2020-09-17T13:38:06
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 1 | OR | 7.5.0 | |
| cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 1 | OR | 8.0 | 8.4.0 |
| cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 1 | OR | 9.0 | 9.3.0 |
| cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 1 | OR | 10.0 | 10.1.0 |
| cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 | Issue Tracking Vendor Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-15847 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15847 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:24:12 | Added to TrackCVE | |||
| 2022-12-04 02:11:45 | 2019-09-02T23:15Z | 2019-09-02T23:15:10 | CVE Published Date | updated |
| 2022-12-04 02:11:45 | 2020-09-17T13:38:06 | CVE Modified Date | updated | |
| 2022-12-04 02:11:45 | Analyzed | Vulnerability Status | updated |