CVE-2019-17543
8.1 · HIGHOverview
CVE-2019-17543 is a high-severity vulnerability affecting lz4_project lz4. It was published on October 14, 2019 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk."
Remediation
Check the references section for vendor advisories and patches from lz4_project. Update lz4 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| lz4_project | lz4 | >= 0, < 1.9.2 | Affected |
References
Frequently Asked Questions
What is CVE-2019-17543?
CVE-2019-17543 is a high-severity vulnerability affecting lz4_project lz4. It was published on October 14, 2019 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2019-17543?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-17543?
Check the references section for vendor advisories and patches from lz4_project. Update lz4 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-17543?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-17543 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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