Foo Labs Xpdf 4.00 JPXStream.cc JPXStream::fillReadBuf memory corruption

Summaryinfo

A vulnerability was found in Foo Labs Xpdf 4.00. It has been declared as critical. Affected is the function JPXStream::fillReadBuf of the file JPXStream.cc. The manipulation results in memory corruption. This vulnerability was named CVE-2018-8105. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in Foo Labs Xpdf 4.00 (Document Reader Software). Affected is the function JPXStream::fillReadBuf of the file JPXStream.cc. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The JPXStream::fillReadBuf function in JPXStream.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 presented 03/14/2018 (Website). The advisory is available at forum.xpdfreader.com. This vulnerability is traded as CVE-2018-8105 since 03/13/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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 19 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 232055 (Linux Distros Unpatched Vulnerability : CVE-2018-8105), 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 (232055). See VDB-114493, VDB-114494, VDB-114495 and VDB-114496 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Document Reader Software

Vendor

• Foo Labs

Name

• Xpdf

Version

• 4.00

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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Entryinfo

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

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