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Vulnerabilities

Remote Code Execution Flaws Impact Aspose APIs

Vulnerabilities that Cisco Talos security researchers have discovered in various Aspose APIs could allow a remote attacker to execute code on affected machines.

Vulnerabilities that Cisco Talos security researchers have discovered in various Aspose APIs could allow a remote attacker to execute code on affected machines.

The APIs provided by Aspose are designed to help with the manipulation and conversion of a broad range of document formats. The discovered security flaws impact APIs that help with the processing of PDF, Microsoft Word, and other file types.

To exploit these vulnerabilities, an attacker would need to send a specially crafted file to the targeted user and then trick them into opening the file while using the corresponding API, Talos explains.

Tracked as CVE-2019-5032, the first of the flaws is an exploitable out-of-bounds read vulnerability in the LabelSst record parser of Aspose Aspose.Cells 19.1.0.

Aspose.Cells is a library used by a large number of companies, banks, and government organizations as part of different software products for data processing and conversion.

The discovered issue resides in the function responsible for handling the LabelSst record and allows an attacker to use a specially crafted XLS file to cause an out-of-bounds read, which would then allow them to execute code remotely.

The second bug is tracked as CVE-2019-5033 and is an out-of-bounds read residing in the Number record parser of the Aspose Aspose.Cells 19.1.0 library.

Similarly with CVE-2019-5032, the flaw can be exploited if the remote attacker delivers to the victim a malformed XLS file that could trigger the issue to allow for code execution.

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As for the third security bug, it is a stack-based buffer overflow vulnerability in the EnumMetaInfo function of the Aspose Aspose.Words library, version 18.11.0.0. The vulnerability is tracked as CVE-2019-5041.

Aspose.Words is a library used for a multitude of operations related with DOC(X) files and, the same as Aspose.Cells, is employed by many companies, banks, and government organizations as a part of data processing/conversion software products.

The discovered flaw resides in the function responsible for handling meta information in a document. An attacker could use a specially crafted DOC file to trigger the stack-based buffer overflow and achieve remote code execution.

No patch is currently available for any of these vulnerabilities, but Talos has decided to publish information on them after numerous unsuccessful attempts to contact Aspose.

Related: Remote Code Execution Vulnerability Impacts SQLite

Related: Hard-Coded Credentials Found in Alpine Linux Docker Images

Related: Cisco Finds Serious Flaws in Sierra Wireless AirLink Devices

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

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