SB2021041398 - Improper Handling of Length Parameter Inconsistency in Apache Commons Compress
Published: April 13, 2021 Updated: April 29, 2025
Security Bulletin ID
SB2021041398
Severity
High
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) Improper Handling of Length Parameter Inconsistency (CVE-ID: CVE-2021-33517)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists because during reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. A remote attacker can trigger the vulnerability and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.