GNU gcc up to 9.x POWER9 Backend __builtin_darn entropy

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.06

A vulnerability classified as critical was found in GNU gcc up to 9.x. Affected by this vulnerability is the function __builtin_darn of the component POWER9 Backend. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 10/22/2019 (Website). The advisory is shared at lists.opensuse.org. This vulnerability is known as CVE-2019-15847 since 09/02/2019. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

Upgrading to version 10.0 eliminates this vulnerability.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
ATT&CK: T1600.001

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: gcc 10.0

Timelineinfo

09/02/2019 🔍
09/03/2019 +1 days 🔍
10/22/2019 +49 days 🔍
12/11/2023 +1511 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: lists.opensuse.org
Status: Not defined

CVE: CVE-2019-15847 (🔍)

Entryinfo

Created: 09/03/2019 10:58
Updated: 12/11/2023 10:42
Changes: 09/03/2019 10:58 (41), 03/06/2020 13:14 (16), 12/11/2023 10:42 (4)
Complete: 🔍

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