SB2020120231 - Fedora 33 update for libxls
Published: December 2, 2020 Updated: April 25, 2025
Security Bulletin ID
SB2020120231
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2020-27819)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the libxls/xls2csv.c file in libxls when parsing XLS cells. A remote attacker can trigger denial of service conditions via crafted XLS file.
Remediation
Install update from vendor's website.