CVE-2018-1000878
8.8 · HIGHOverview
CVE-2018-1000878 is a high-severity vulnerability affecting libarchive libarchive. It was published on December 20, 2018 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.
Remediation
Check the references section for vendor advisories and patches from libarchive. Update libarchive 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 |
|---|---|---|---|
| libarchive | libarchive | >= 3.1.0, < 3.4.0 | Affected |
References
Frequently Asked Questions
What is CVE-2018-1000878?
CVE-2018-1000878 is a high-severity vulnerability affecting libarchive libarchive. It was published on December 20, 2018 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2018-1000878?
This vulnerability has a CVSS 3.1 base score of 8.8, 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-2018-1000878?
Check the references section for vendor advisories and patches from libarchive. Update libarchive 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-2018-1000878?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-1000878 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.
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