CVE-2012-2978

query.c in NSD 3.0.x through 3.0.8, 3.1.x through 3.1.1, and 3.2.x before 3.2.12 allows remote attackers to cause a denial of service (NULL pointer dereference and child process crash) via a crafted DNS packet.

Published: 2012-07-27 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-2978 is rated Moderate Risk (47/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.38%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-2978

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.90% 1.38% -0.52%
2 2025-03-29 1.38% 1.90% +0.52%
3 2025-03-17 — 1.38% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2978

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2012-2978

OS Trackers for CVE-2012-2978

vendor priority summary link
ubuntu low CVE-2012-2978 low priority: Ubuntu including 2 source packages (nsd, nsd3), 32 status rows across 16 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 14, ignored 8, not-affected 8, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2012-2978

Affected software / configurations for CVE-2012-2978

Vendor Product Version Raw CPE
nlnetlabs nsd 3.0.0 cpe:2.3:a:nlnetlabs:nsd:3.0.0:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.1 cpe:2.3:a:nlnetlabs:nsd:3.0.1:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.2 cpe:2.3:a:nlnetlabs:nsd:3.0.2:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.3 cpe:2.3:a:nlnetlabs:nsd:3.0.3:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.4 cpe:2.3:a:nlnetlabs:nsd:3.0.4:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.5 cpe:2.3:a:nlnetlabs:nsd:3.0.5:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.6 cpe:2.3:a:nlnetlabs:nsd:3.0.6:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.7 cpe:2.3:a:nlnetlabs:nsd:3.0.7:*:*:*:*:*:*:*
nlnetlabs nsd 3.0.8 cpe:2.3:a:nlnetlabs:nsd:3.0.8:*:*:*:*:*:*:*
nlnetlabs nsd 3.1.0 cpe:2.3:a:nlnetlabs:nsd:3.1.0:*:*:*:*:*:*:*
nlnetlabs nsd 3.1.1 cpe:2.3:a:nlnetlabs:nsd:3.1.1:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.0 cpe:2.3:a:nlnetlabs:nsd:3.2.0:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.1 cpe:2.3:a:nlnetlabs:nsd:3.2.1:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.3 cpe:2.3:a:nlnetlabs:nsd:3.2.3:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.4 cpe:2.3:a:nlnetlabs:nsd:3.2.4:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.5 cpe:2.3:a:nlnetlabs:nsd:3.2.5:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.6 cpe:2.3:a:nlnetlabs:nsd:3.2.6:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.7 cpe:2.3:a:nlnetlabs:nsd:3.2.7:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.8 cpe:2.3:a:nlnetlabs:nsd:3.2.8:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.9 cpe:2.3:a:nlnetlabs:nsd:3.2.9:*:*:*:*:*:*:*
nlnetlabs nsd 3.2.10 cpe:2.3:a:nlnetlabs:nsd:3.2.10:*:*:*:*:*:*:*

References for CVE-2012-2978

cvelogic Threat Intelligence