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The vulnerability identified as CVE-2025-52885 is a use-after-free in the StructTreeRoot class of the Poppler PDF rendering library included in Red Hat Hardened Images RPMs. When processing maliciously crafted PDF documents, the application may reference freed memory, leading to crashes or other unexpected behavior. The flaw requires a local user to open or preview the malicious PDF. Red Hat classifies this as a moderate impact vulnerability with a CVSS 3.1 base score of 6.6 (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H). No mitigation other than applying the vendor update is currently available that meets Red Hat's standards.

Detailed information about Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update affecting Red Hat Product Security Red Hat. Ge

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2026:7364

https://images.redhat.com/

https://access.redhat.com/security/cve/CVE-2025-52885

https://access.redhat.com/security/updates/classification/

https://access.redhat.com/security/cve/CVE-2025-43718

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Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Poppler 24.06.1 through 25.x before 25.04.0 allows stack consumption and a SIGSEGV via deeply nested structures within the metadata (such as GTS_PDFEVersion) of a PDF document, e.g., a regular expression for a long pdfsubver string. This occurs in Dict::lookup, Catalog::getMetadata, and associated functions in PDFDoc, with deep recursion in the regex executor (std::__detail::_Executor).

CVE-2025-43718 is a vulnerability in the freedesktop Poppler PDF rendering library, specifically affecting versions 24.06.1 through versions prior to 25.04.0. The issue stems from uncontrolled recursion when parsing deeply nested metadata structures within PDF documents, such as the GTS_PDFEVersion field or long pdfsubver strings that are processed using regular expressions. The recursion occurs in functions like Dict::lookup, Catalog::getMetadata, and the regex executor component std::__detail::_Executor within the PDFDoc class. When a maliciously crafted PDF with deeply nested metadata is processed, the recursion depth can cause excessive stack consumption, leading to a stack overflow and a segmentation fault (SIGSEGV). This results in a denial-of-service condition by crashing the application using Poppler to parse the PDF. The CVSS score is 2.9, indicating low severity, with an attack vector limited to local access (AV:L), high attack complexity (AC:H), no privileges required (PR:N), and no user interaction (UI:N). The vulnerability does not impact confidentiality or integrity, only availability. No public exploits or active exploitation in the wild have been reported. The root cause is classified under CWE-674 (Uncontrolled Recursion). The vulnerability highlights the risk of insufficient input validation and recursion control in PDF metadata parsing, which can be exploited to disrupt services relying on Poppler for PDF rendering or processing. No official patches were linked at the time of publication, but upgrading to Poppler 25.04.0 or later is expected to resolve the issue.

Detailed information about CVE-2025-43718: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2025-43718: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-43718: CWE-674 Uncontrolled Recursion in freedesktop Poppler


Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement updateCVE-2025-43718 0 This update includes the following RPMs: MediumVulnerability#gcve #csaf #cve-2025-43718 Join the discussion	GCVE Database	04/10/2026, 07:11:51 UTC Added: 06/27/2026, 22:08:15 UTC
CVE-2025-43718: CWE-674 Uncontrolled Recursion in freedesktop PopplerCVE-2025-43718 0 Poppler 24.06.1 through 25.x before 25.04.0 allows stack consumption and a SIGSEGV via deeply nested structures within the metadata (such as GTS_PDFEVersion) of a PDF document, e.g., a regular expression for a long pdfsubver string. This occurs in Dict::lookup, Catalog::getMetadata, and associated functions in PDFDoc, with deep recursion in the regex executor (std::__detail::_Executor). LowVulnerabilityGermanyFranceNetherlands+2#cve #cve-2025-43718 #cwe-674 Join the discussion	CVE Database V5	10/01/2025, 00:00:00 UTC Added: 10/01/2025, 19:03:46 UTC

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