GPAC 0.7.2 text_import.c gf_text_get_utf8_line Return Value out-of-bounds write

Summaryinfo

A vulnerability was found in GPAC 0.7.2. It has been declared as critical. This vulnerability affects the function gf_text_get_utf8_line of the file media_tools/text_import.c. The manipulation with the input -1 as part of Return Value results in out-of-bounds write. This vulnerability is cataloged as CVE-2018-20760. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in GPAC 0.7.2. Affected is the function gf_text_get_utf8_line of the file media_tools/text_import.c. The manipulation with the input value -1 leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In GPAC 0.7.2, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because a certain -1 return value is mishandled.

The bug was discovered 12/13/2018. The weakness was shared 02/06/2019 (Website). The advisory is shared for download at lists.debian.org. This vulnerability is traded as CVE-2018-20760 since 02/06/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 55 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176694 (Debian Security Update for gpac (DLA 1693-1)).

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

The entries VDB-114187, VDB-130585, VDB-130586 and VDB-130587 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Multimedia Player Software

Name

• GPAC

Version

• 0.7.2

License

• open-source

Website

• Product: https://github.com/gpac/gpac/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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