CVE-2017-18258
6.5 · MEDIUMOverview
CVE-2017-18258 is a medium-severity vulnerability affecting xmlsoft libxml2. It was published on April 8, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
Remediation
Check the references section for vendor advisories and patches from xmlsoft. Update libxml2 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 |
|---|---|---|---|
| xmlsoft | libxml2 | >= 0, < 2.9.6 | Affected |
References
Frequently Asked Questions
What is CVE-2017-18258?
CVE-2017-18258 is a medium-severity vulnerability affecting xmlsoft libxml2. It was published on April 8, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
How severe is CVE-2017-18258?
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2017-18258?
Check the references section for vendor advisories and patches from xmlsoft. Update libxml2 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-2017-18258?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-18258 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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