CVE-2009-1755

Description

Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.79% Top 20%
Vendor Advisory nlnetlabs.nl
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.nlnetlabs.nl/publications/NSD_vulnerability_announcement.html patch vendor advisory
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529420 patch
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529418 patch
http://www.openwall.com/lists/oss-security/2009/05/19/1 mailing list

Frequently Asked Questions

What is the severity of CVE-2009-1755?
CVE-2009-1755 has been scored as a medium severity vulnerability.
How to fix CVE-2009-1755?
To fix CVE-2009-1755, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-1755 being actively exploited in the wild?
It is possible that CVE-2009-1755 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.