CVE-2021-29482
7.5 · HIGHOverview
CVE-2021-29482 is a high-severity vulnerability affecting xz_project xz. It was published on April 28, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
xz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.
Remediation
Check the references section for vendor advisories and patches from xz_project. Update xz 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 |
|---|---|---|---|
| xz_project | xz | >= 0, < 0.5.8 | Affected |
References
Frequently Asked Questions
What is CVE-2021-29482?
CVE-2021-29482 is a high-severity vulnerability affecting xz_project xz. It was published on April 28, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-29482?
This vulnerability has a CVSS 3.1 base score of 7.5, 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-2021-29482?
Check the references section for vendor advisories and patches from xz_project. Update xz 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-2021-29482?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-29482 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
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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