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CVE-2009-0780

5.0 · MEDIUM

The aspath_prepend function in rde_attr.c in bgpd in OpenBSD 4.3 and 4.4 allows remote attackers to cause a denial of service (application crash) via an Autonomous System (AS) advertisement contain…

Published Mar 4, 2009openbsdEPSS 1.56%

Overview

CVE-2009-0780 is a medium-severity vulnerability affecting openbsd openbsd. It was published on March 4, 2009 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 aspath_prepend function in rde_attr.c in bgpd in OpenBSD 4.3 and 4.4 allows remote attackers to cause a denial of service (application crash) via an Autonomous System (AS) advertisement containing a long AS path.

Remediation

Check the references section for vendor advisories and patches from openbsd. Update openbsd 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

VendorProductVersionsStatus

References

Refopenbsd.org/errata43.html#010_bgpdRefopenbsd.org/errata44.html#010_bgpdRefosvdb.org/52271Refsecunia.com/advisories/33975Refwww.securityfocus.com/bid/33828Refwww.securitytracker.com/id?1021736Refexchange.xforce.ibmcloud.com/vulnerabilities/48812Refopenbsd.org/errata43.html#010_bgpdRefopenbsd.org/errata44.html#010_bgpdRefosvdb.org/52271

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0780?

CVE-2009-0780 is a medium-severity vulnerability affecting openbsd openbsd. It was published on March 4, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2009-0780?

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-2009-0780?

Check the references section for vendor advisories and patches from openbsd. Update openbsd 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-2009-0780?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0780 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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