Foo Labs Xpdf 4.00 PDF File Stream.cc DCTStream::decodeImage null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Foo Labs Xpdf 4.00. Impacted is the function DCTStream::decodeImage of the file Stream.cc of the component PDF File Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is handled as CVE-2018-18458. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Foo Labs Xpdf 4.00 (Document Reader Software). It has been declared as problematic. This vulnerability affects the function DCTStream::decodeImage of the file Stream.cc of the component PDF File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

The function DCTStream::decodeImage in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.

The bug was discovered 10/16/2018. The weakness was released 10/18/2018 (Website). The advisory is available at forum.xpdfreader.com. This vulnerability was named CVE-2018-18458 since 10/18/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 232078 (Linux Distros Unpatched Vulnerability : CVE-2018-18458), 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 (232078). Entries connected to this vulnerability are available at VDB-125742, VDB-125743, VDB-125744 and VDB-125745. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: 232078
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-18458

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/16/2018 🔍
10/18/2018 +1 days 🔍
10/18/2018 +0 days 🔍
10/18/2018 +0 days 🔍
10/18/2018 +0 days 🔍
03/07/2025 +2332 days 🔍

Sourcesinfo

Advisory: forum.xpdfreader.com
Status: Not defined

CVE: CVE-2018-18458 (🔍)
GCVE (CVE): GCVE-0-2018-18458
GCVE (VulDB): GCVE-100-125746
See also: 🔍

Entryinfo

Created: 10/18/2018 14:26
Updated: 03/07/2025 09:10
Changes: 10/18/2018 14:26 (45), 06/18/2020 06:42 (7), 05/30/2023 09:54 (13), 03/07/2025 09:10 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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