CVE-2009-1755
Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-1755- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-189
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-1755- Updated
- 2026-11-02
EUVDEUVD-2009-1750 No score
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.
- Record
EUVD-2009-1750- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hvfw-j69f-c8f3 No score
Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and...
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.
- Record
GHSA-hvfw-j69f-c8f3- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2009-1755- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-1755 No score
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.
- Record
DEBIAN-CVE-2009-1755- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nsdDebian:12 |
before 2.3.7-3 | 2.3.7-3 |
nsdDebian:13 |
before 2.3.7-3 | 2.3.7-3 |
nsdDebian:14 |
before 2.3.7-3 | 2.3.7-3 |
nsdDebian:4.0 |
before 2.3.6-1+etch1, plus listed versions 2.3.6-1 |
2.3.6-1+etch1 |
nsdDebian:5.0 |
before 2.3.7-1.1+lenny1, plus listed versions 2.3.7-1.1 |
2.3.7-1.1+lenny1 |
nsd3Debian:5.0 |
before 3.0.7-3.lenny2, plus listed versions 3.0.7-3.lenny1 |
3.0.7-3.lenny2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1755 is a medium vulnerability (CVSS 5.0) in Nlnetlabs Nsd, published May 20, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.16%, the 88th percentile. Fixed in nsd 2.3.7-3.
References
nlnetlabs.nl/publications/NSD_vulnerability_announcement.html
bugs.debian.org/cgi-bin/bugreport.cgi?bug=529420
openwall.com/lists/oss-security/2009/05/19/1
nvd.nist.gov/vuln/detail/CVE-2009-1755
github.com/advisories/GHSA-hvfw-j69f-c8f3
security-tracker.debian.org/tracker/CVE-2009-1755