SB2019040114 - Fedora 30 update for poppler

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2018-20662)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a wrong return value from PDFDoc::setup when an xref data structure is mishandled during extractPDFSubtype processing. A remote attacker can trick the victim into opening a specially crafter PDF file cause application crash by Object.h SIGABRT.

2) Out-of-bounds read (CVE-ID: CVE-2019-9631)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read in the CairoRescaleBox.cc downsample_row_box_filter function. A remote attacker can perform a denial of service attack.

3) Heap-based buffer overflow (CVE-ID: CVE-2019-9200)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing PDF files in ImageStream::getLine() function in Stream.cc. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

4) Resource exhaustion (CVE-ID: CVE-2019-9903)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect processing of  dict marking in PDFDoc::markObject() function in PDFDoc.cc file when processing PDF files. A remote attacker can pass specially crafted PDF file to the affected software that invokes pdfunite binary, trigger resource exhaustion and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2019-14040bfa27