Bug 2375930 (CVE-2025-52886)

Summary: CVE-2025-52886 poppler: Poppler Use After Free Vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A use-after-free vulnerability has been discovered in the PDF rendering library, stemming from a reference counting flaw. This issue allows an attacker, by providing specially crafted malicious input, to overflow a reference counter which subsequently leads to a use-after-free condition. While the exploitation of this vulnerability in practice requires a significant amount of time to achieve, it nonetheless presents a risk of memory corruption, potentially leading to unpredictable program behavior, crashes, or, in more severe scenarios, could lay the groundwork for arbitrary code execution.
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2375940, 2375941, 2375942, 2375943, 2375944, 2375945    
Bug Blocks:    

Description OSIDB Bzimport 2025-07-02 16:01:35 UTC 
Poppler is a PDF rendering library. Versions prior to 25.06.0 use `std::atomic_int` for reference counting. Because `std::atomic_int` is only 32 bits, it is possible to overflow the reference count and trigger a use-after-free. Version 25.06.0 patches the issue.