CVE-2019-10996 - Use After Free

Severity

78%

Complexity

18%

Confidentiality

98%

Red Lion Controls Crimson, version 3.0 and prior and version 3.1 prior to release 3112.00, allow multiple vulnerabilities to be exploited when a valid user opens a specially crafted, malicious input file that can reference memory after it has been freed.

Red Lion Controls Crimson, version 3.0 and prior and version 3.1 prior to release 3112.00, allow multiple vulnerabilities to be exploited when a valid user opens a specially crafted, malicious input file that can reference memory after it has been freed.

CVSS 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/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 5 years ago

2019-09-23 16:15:00

Last updated 5 years ago

2019-10-09 23:45:00

Affected Software

Red Lion Crimson

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