libsixel 1.8.4 fromgif.c gif_out_code out-of-bounds write

Summaryinfo

A vulnerability classified as critical has been found in libsixel 1.8.4. The affected element is the function gif_out_code of the file fromgif.c. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2019-20140. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in libsixel 1.8.4. It has been rated as critical. This issue affects the function gif_out_code of the file fromgif.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in libsixel 1.8.4. There is a heap-based buffer overflow in the function gif_out_code at fromgif.c.

The weakness was presented 12/30/2019. The identification of this vulnerability is CVE-2019-20140 since 12/30/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• libsixel

Version

• 1.8.4

License

• open-source

CPE 2.3info

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CPE 2.2info

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