Foo Labs Xpdf 4.00 JBIG2Stream.cc readGenericBitmap memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Foo Labs Xpdf 4.00 and classified as critical. This affects the function JBIG2Stream::readGenericBitmap of the file JBIG2Stream.cc. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2018-8103. 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 critical. This vulnerability affects the function JBIG2Stream::readGenericBitmap of the file JBIG2Stream.cc. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The JBIG2Stream::readGenericBitmap function in JBIG2Stream.cc in xpdf 4.00 allows attackers to launch denial of service (heap-based buffer over-read and application crash) via a specific pdf file, as demonstrated by pdftohtml.

The bug was discovered 02/22/2018. The weakness was released 03/14/2018 (Website). The advisory is shared for download at forum.xpdfreader.com. This vulnerability was named CVE-2018-8103 since 03/13/2018. 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 19 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 232031 (Linux Distros Unpatched Vulnerability : CVE-2018-8103), 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 (232031). Entries connected to this vulnerability are available at VDB-114493, VDB-114494, VDB-114495 and VDB-114497. 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: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 232031
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-8103

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/22/2018 🔍
03/13/2018 +19 days 🔍
03/13/2018 +0 days 🔍
03/14/2018 +1 days 🔍
03/14/2018 +0 days 🔍
03/07/2025 +2550 days 🔍

Sourcesinfo

Advisory: forum.xpdfreader.com
Status: Not defined

CVE: CVE-2018-8103 (🔍)
GCVE (CVE): GCVE-0-2018-8103
GCVE (VulDB): GCVE-100-114496
See also: 🔍

Entryinfo

Created: 03/14/2018 09:39
Updated: 03/07/2025 11:26
Changes: 03/14/2018 09:39 (59), 06/17/2020 17:49 (1), 03/07/2025 11:26 (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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