Foo Labs Xpdf 4.00 readCodestream null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Foo Labs Xpdf 4.00. This affects the function readCodestream. Executing a manipulation can lead to null pointer dereference. This vulnerability is registered as CVE-2018-7175. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Foo Labs Xpdf 4.00 (Document Reader Software). This vulnerability affects the function readCodestream. 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:

An issue was discovered in xpdf 4.00. A NULL pointer dereference in readCodestream allows an attacker to cause denial of service via a JPX image with zero components.

The bug was discovered 02/12/2018. The weakness was published 02/15/2018 (Website). The advisory is shared for download at forum.xpdfreader.com. This vulnerability was named CVE-2018-7175 since 02/15/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 232049 (Linux Distros Unpatched Vulnerability : CVE-2018-7175), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277720 (Fedora Security Update for xpdf (FEDORA-2019-b3aec99d2c)).

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 (232049). Similar entries are available at VDB-113498, VDB-113499, VDB-113791 and VDB-113793. Once again VulDB remains the best source for vulnerability data.

Productinfo

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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: 232049
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-7175

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/12/2018 🔍
02/15/2018 +3 days 🔍
02/15/2018 +0 days 🔍
02/15/2018 +0 days 🔍
02/16/2018 +1 days 🔍
03/07/2025 +2576 days 🔍

Sourcesinfo

Advisory: forum.xpdfreader.com
Status: Confirmed

CVE: CVE-2018-7175 (🔍)
GCVE (CVE): GCVE-0-2018-7175
GCVE (VulDB): GCVE-100-113500
See also: 🔍

Entryinfo

Created: 02/16/2018 13:03
Updated: 03/07/2025 10:47
Changes: 02/16/2018 13:03 (60), 06/17/2020 16:58 (1), 03/07/2025 10:47 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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