Foo Labs Xpdf 4.00 AcroForm.cc AcroForm::scanField PDF File resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Foo Labs Xpdf 4.00. This affects the function AcroForm::scanField of the file AcroForm.cc. Such manipulation as part of PDF File leads to resource management. This vulnerability is uniquely identified as CVE-2018-7453. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Foo Labs Xpdf 4.00 (Document Reader Software) and classified as problematic. Affected by this issue is the function AcroForm::scanField of the file AcroForm.cc. The manipulation as part of a PDF File leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

Infinite recursion in AcroForm::scanField in AcroForm.cc in xpdf 4.00 allows attackers to launch denial of service via a specific pdf file due to lack of loop checking, as demonstrated by pdftohtml.

The bug was discovered 02/12/2018. The weakness was disclosed 02/24/2018 (Website). The advisory is shared for download at forum.xpdfreader.com. This vulnerability is handled as CVE-2018-7453 since 02/23/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 232050 (Linux Distros Unpatched Vulnerability : CVE-2018-16369), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (232050). The entries VDB-113794, VDB-113793 and VDB-113791 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 232050
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-16369

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/12/2018 🔍
02/23/2018 +11 days 🔍
02/24/2018 +1 days 🔍
02/24/2018 +0 days 🔍
02/24/2018 +0 days 🔍
03/07/2025 +2568 days 🔍

Sourcesinfo

Advisory: forum.xpdfreader.com
Status: Not defined

CVE: CVE-2018-7453 (🔍)
GCVE (CVE): GCVE-0-2018-7453
GCVE (VulDB): GCVE-100-113792
See also: 🔍

Entryinfo

Created: 02/24/2018 20:13
Updated: 03/07/2025 10:47
Changes: 02/24/2018 20:13 (60), 06/17/2020 17:09 (1), 03/07/2025 10:47 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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