CVE-2019-5761 - Use After Free

Severity

68%

Complexity

86%

Confidentiality

106%

Incorrect object lifecycle management in SwiftShader in Google Chrome prior to 72.0.3626.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Incorrect object lifecycle management in SwiftShader in Google Chrome prior to 72.0.3626.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.0 Base Score 8.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/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 6 years ago

2019-02-19 17:29:00

Last updated 5 years ago

2019-04-18 14:52:00

Affected Software

Red Hat Enterprise Linux Desktop 6.0

6.0

Red Hat Enterprise Linux Server 6.0

6.0

Red Hat Enterprise Linux Workstation 6.0

6.0

Fedora 29

29

Fedora 30

30

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