How the Mentioned CVE Works:
The vulnerability, CVE-2025-XXXX, in Apache Seata arises from improper handling of highly compressed data, leading to a data amplification issue. When the system processes maliciously crafted compressed data, it fails to validate the size of the decompressed output, resulting in excessive memory consumption and potential denial of service (DoS). Attackers can exploit this flaw by sending specially designed payloads that, when decompressed, consume disproportionate system resources. This vulnerability affects Apache Seata versions 2.0.0 through 2.2.0. The issue has been resolved in version 2.3.0, which implements proper validation of decompressed data size.
DailyCVE Form:
Platform: Apache Seata
Version: 2.0.0 – 2.2.0
Vulnerability: Data Amplification
Severity: Low
Date: Mar 20, 2025
What Undercode Say:
Exploitation:
- Crafting Malicious Payloads: Attackers can create highly compressed payloads that, when decompressed, exceed system memory limits.
- Sending Payloads: The payloads are sent to the Apache Seata server via network requests.
- Triggering Exploit: The server decompresses the payload, leading to resource exhaustion and potential DoS.
Protection:
- Upgrade to 2.3.0: Apply the patched version of Apache Seata.
- Input Validation: Implement strict validation of compressed data size before decompression.
- Resource Monitoring: Monitor system resources to detect unusual memory consumption patterns.
Commands:
1. Check Current Version:
seata-server --version
2. Upgrade to 2.3.0:
wget https://downloads.apache.org/seata/2.3.0/seata-server-2.3.0.tar.gz tar -xzf seata-server-2.3.0.tar.gz cd seata-server-2.3.0 ./bin/seata-server.sh start
Code Snippets:
1. Decompression Validation (Java):
public byte[] safeDecompress(byte[] compressedData, int maxDecompressedSize) throws IOException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try (InflaterInputStream inflater = new InflaterInputStream(new ByteArrayInputStream(compressedData))) {
byte[] buffer = new byte[bash];
int bytesRead;
while ((bytesRead = inflater.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
if (outputStream.size() > maxDecompressedSize) {
throw new IOException("Decompressed data exceeds maximum allowed size");
}
}
}
return outputStream.toByteArray();
}
2. Resource Monitoring Script (Bash):
while true; do memory_usage=$(ps -o rss= -p $(pgrep seata-server)) if [bash]; then echo "High memory usage detected: $memory_usage KB" Trigger alert or restart service fi sleep 10 done
Analytics:
- Impact: Low severity due to limited exploitability and availability of patches.
- Affected Systems: Apache Seata servers running versions 2.0.0 to 2.2.0.
- Mitigation Rate: High, as upgrading to 2.3.0 resolves the issue.
- Exploit Complexity: Moderate, requiring crafted payloads and network access.
By following these steps, users can effectively mitigate the risks associated with CVE-2025-XXXX and ensure the security of their Apache Seata deployments.
References:
Reported By: https://github.com/advisories/GHSA-65vg-64g8-mwjr
Extra Source Hub:
Undercode
