Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2009-1252

6.8 · MEDIUM

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to exe…

Published May 19, 2009ntpCWE-119EPSS 21.29%

Overview

CVE-2009-1252 is a medium-severity vulnerability affecting ntp ntp. It was published on May 19, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Remediation

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

Refftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-006.txt.ascReflists.opensuse.org/opensuse-security-announce/2009-06/msg00003.htmlRefrhn.redhat.com/errata/RHSA-2009-1039.htmlRefrhn.redhat.com/errata/RHSA-2009-1040.htmlRefsecunia.com/advisories/35137Refsecunia.com/advisories/35138Refsecunia.com/advisories/35166Refsecunia.com/advisories/35169Refsecunia.com/advisories/35243Refsecunia.com/advisories/35253

How CyberStrike helps

Frequently asked questions

What is CVE-2009-1252?

CVE-2009-1252 is a medium-severity vulnerability affecting ntp ntp. It was published on May 19, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2009-1252?

This vulnerability has a CVSS 2.0 base score of 6.8, 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-2009-1252?

Check the references section for vendor advisories and patches from ntp. Update ntp 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-2009-1252?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-1252 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.

Related MEDIUM CVEs from 2009

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999