CVE-2019-20168 - Use After Free

Severity

55%

Complexity

18%

Confidentiality

60%

An issue was discovered in GPAC version 0.8.0 and 0.9.0-development-20191109. There is a use-after-free in the function gf_isom_box_dump_ex() in isomedia/box_funcs.c.

An issue was discovered in GPAC version 0.8.0 and 0.9.0-development-20191109. There is a use-after-free in the function gf_isom_box_dump_ex() in isomedia/box_funcs.c.

CVSS 3.1 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/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

Type

GPAC

First reported 5 years ago

2019-12-31 00:15:00

Last updated 5 years ago

2020-01-02 14:28:00

Affected Software

GPAC 0.8.0

0.8.0

GPAC 0.9.0

0.9.0

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