Hancom Office PPT File Parser stack-based overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in Hancom Office. Affected by this issue is some unknown functionality of the component PPT File Parser. The manipulation results in stack-based overflow. This vulnerability is cataloged as CVE-2023-50235. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Hancom Office (affected version unknown). Affected is an unknown functionality of the component PPT File Parser. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Hancom Office Show PPT File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Show. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PPT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20387.

The weakness was shared 12/21/2023 as ZDI-23-1857. The advisory is available at zerodayinitiative.com. This vulnerability is traded as CVE-2023-50235 since 12/05/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/14/2025).

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Hancom

Name

• Office

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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