SB2022020352 - Fedora 34 update for libdxfrw, librecad
Published: February 3, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2021-45341)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to a boundary error in the CDataMoji of the jwwlib component. A remote attacker can trick the victim into opening a specially crafted JWW document, trigger heap buffer overflow, and execute arbitrary code on the target system.
2) Buffer overflow (CVE-ID: CVE-2021-45342)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to a boundary error in the CDataList of the jwwlib component. A remote attacker can trick the victim into opening a specially crafted JWW document, trigger heap buffer overflow, and execute arbitrary code on the target system.
3) NULL pointer dereference (CVE-ID: CVE-2021-45343)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the HATCH handling of libdxfrw. A remote attacker can trick the victim into opening a specially crafted DXF document and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.