CVE-2026-91752
Description
A flaw was found in libextractor. This stack-based buffer overflow vulnerability in the process_star_office function allows attackers to craft malicious StarOffice documents. When processed, these documents can cause a large allocation on the stack, leading to a stack overflow and crashing any application extracting metadata. This can result in a denial of service.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
To mitigate this issue, avoid processing untrusted StarOffice documents with applications that use libextractor. Restrict the input to such applications to only trusted sources.
Understanding the Weakness (CWE)
Integrity,Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands; Read Memory; Modify Memory
If the incorrect calculation is used in the context of memory allocation, then the software may create a buffer that is smaller or larger than expected. If the allocated buffer is smaller than expected, this could lead to an out-of-bounds read or write (CWE-119), possibly causing a crash, allowing arbitrary code execution, or exposing sensitive data.
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