CVE-2020-5988 - Use After Free

Severity

71%

Complexity

18%

Confidentiality

86%

NVIDIA Virtual GPU Manager contains a vulnerability in the vGPU plugin, in which allocated memory can be freed twice, which may lead to information disclosure or denial of service. This affects vGPU version 8.x (prior to 8.5), version 10.x (prior to 10.4) and version 11.0.

CVSS 3.1 Base Score 7.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H).

CVSS 2.0 Base Score 3.6. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:P).

Demo Examples

Use After Free

CWE-416

The following example demonstrates the weakness.


               
}
free(buf3R2);

Use After Free

CWE-416

The following code illustrates a use after free error:


               
}
free(ptr);
logError("operation aborted before commit", ptr);

When an error occurs, the pointer is immediately freed. However, this pointer is later incorrectly used in the logError function.

Overview

First reported 4 years ago

2020-10-02 21:15:00

Last updated 4 years ago

2020-10-13 15:57:00

Affected Software

NVIDIA Virtual GPU Manager

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