CVE-2013-4421
5.0 · MEDIUMOverview
CVE-2013-4421 is a medium-severity vulnerability affecting dropbear_ssh_project dropbear_ssh. It was published on October 25, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.
Remediation
Check the references section for vendor advisories and patches from dropbear_ssh_project. Update dropbear_ssh 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 |
|---|---|---|---|
| dropbear_ssh_project | dropbear_ssh | >= 0, < 2013.59 | Affected |
References
Frequently Asked Questions
What is CVE-2013-4421?
CVE-2013-4421 is a medium-severity vulnerability affecting dropbear_ssh_project dropbear_ssh. It was published on October 25, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
How severe is CVE-2013-4421?
This vulnerability has a CVSS 2.0 base score of 5.0, 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-2013-4421?
Check the references section for vendor advisories and patches from dropbear_ssh_project. Update dropbear_ssh 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-2013-4421?
CyberStrike's AI-powered security agents can automatically detect CVE-2013-4421 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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