Poppler up to 25.03.x GTS_PDFEVersion incorrect regex

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Poppler up to 25.03.x. The affected element is an unknown function. Such manipulation of the argument GTS_PDFEVersion leads to incorrect regex. This vulnerability is traded as CVE-2025-43718. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Poppler up to 25.03.x. Affected by this issue is an unknown functionality. The manipulation of the argument GTS_PDFEVersion with an unknown input leads to a incorrect regex vulnerability. Using CWE to declare the problem leads to CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. Impacted is availability. CVE summarizes:

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).

The advisory is shared for download at gitlab.freedesktop.org. This vulnerability is handled as CVE-2025-43718 since 04/17/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 270109 (Fedora 42 : mingw-poppler (2025-15b4c6bad6)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 25.04.0 eliminates this vulnerability. Applying the patch f54b815672117c250420787c8c006de98e8c7408 is able to eliminate this problem. The bugfix is ready for download at gitlab.freedesktop.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (270109). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 2.9
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrect regex
CWE: CWE-185 / CWE-697
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 270109
Nessus Name: Fedora 42 : mingw-poppler (2025-15b4c6bad6)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Poppler 25.04.0
Patch: f54b815672117c250420787c8c006de98e8c7408

Timelineinfo

04/17/2025 CVE reserved
10/02/2025 +168 days Advisory disclosed
10/02/2025 +0 days VulDB entry created
10/13/2025 +11 days VulDB entry last update

Sourcesinfo

Advisory: f54b815672117c250420787c8c006de98e8c7408
Status: Confirmed

CVE: CVE-2025-43718 (🔒)
GCVE (CVE): GCVE-0-2025-43718
GCVE (VulDB): GCVE-100-326684

Entryinfo

Created: 10/02/2025 08:18
Updated: 10/13/2025 06:22
Changes: 10/02/2025 08:18 (57), 10/04/2025 04:36 (11), 10/13/2025 06:22 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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