SB2019013026 - Fedora 29 update for mingw-poppler
Published: January 30, 2019 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2018-20481)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when XRef::getEntry in XRef.cc mishandles unallocated XRef entries. A remote attacker can trigger denial of service conditions via a specially crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc.
2) Reachable Assertion (CVE-ID: CVE-2018-20551)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable Object::getString assertion due to construction of invalid rich media annotation assets in the AnnotRichMedia class in Annot.c. A remote attacker can cause a denial of service.
3) Reachable Assertion (CVE-ID: CVE-2018-20650)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach. A remote attacker can cause a denial of service.
Remediation
Install update from vendor's website.