GnuCOBOL 2.2 cobc/scanner.l read_literal memory corruption

Summaryinfo

A vulnerability was found in GnuCOBOL 2.2. It has been declared as critical. The affected element is the function read_literal of the file cobc/scanner.l. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2019-14528. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GnuCOBOL 2.2. Affected by this issue is the function read_literal of the file cobc/scanner.l. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

GnuCOBOL 2.2 has a heap-based buffer overflow in read_literal in cobc/scanner.l via crafted COBOL source code.

The weakness was released 08/02/2019. This vulnerability is handled as CVE-2019-14528 since 08/02/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• GnuCOBOL

Version

• 2.2

CPE 2.3info

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CPE 2.2info

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