Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before…
Priority LOW 37CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) with an unknown type containing input that is longer than a specified length.
Why it matters now
EPSS 0.04106 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 26
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nlnetlabs:ldns:*:*:*:*:*:*:*:* | up to 1.6.10 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:0.50:*:*:*:*:*:*:* | 0.50 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:0.60:*:*:*:*:*:*:* | 0.60 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:0.65:*:*:*:*:*:*:* | 0.65 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:0.66:*:*:*:*:*:*:* | 0.66 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:0.70:*:*:*:*:*:*:* | 0.70 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.2.0:*:*:*:*:*:*:* | 1.2.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.2.1:*:*:*:*:*:*:* | 1.2.1 | Vulnerable | NLNETLABS |
- cpe:2.3:a:nlnetlabs:ldns:*:*:*:*:*:*:*:* Versions up to 1.6.10 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:0.50:*:*:*:*:*:*:* Versions 0.50 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:0.60:*:*:*:*:*:*:* Versions 0.60 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:0.65:*:*:*:*:*:*:* Versions 0.65 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:0.66:*:*:*:*:*:*:* Versions 0.66 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:0.70:*:*:*:*:*:*:* Versions 0.70 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.2.0:*:*:*:*:*:*:* Versions 1.2.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.2.1:*:*:*:*:*:*:* Versions 1.2.1 Vulnerable ·NLNETLABS
Show 16 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nlnetlabs:ldns:1.2.2:*:*:*:*:*:*:* | 1.2.2 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.4.0:*:*:*:*:*:*:* | 1.4.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.5.0:*:*:*:*:*:*:* | 1.5.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.5.1:*:*:*:*:*:*:* | 1.5.1 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.0:*:*:*:*:*:*:* | 1.6.0 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.1:*:*:*:*:*:*:* | 1.6.1 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.2:*:*:*:*:*:*:* | 1.6.2 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.3:*:*:*:*:*:*:* | 1.6.3 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.4:*:*:*:*:*:*:* | 1.6.4 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.5:*:*:*:*:*:*:* | 1.6.5 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.6:*:*:*:*:*:*:* | 1.6.6 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.7:*:*:*:*:*:*:* | 1.6.7 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.8:*:*:*:*:*:*:* | 1.6.8 | Vulnerable | NLNETLABS |
| cpe:2.3:a:nlnetlabs:ldns:1.6.9:*:*:*:*:*:*:* | 1.6.9 | Vulnerable | NLNETLABS |
- cpe:2.3:a:nlnetlabs:ldns:1.2.2:*:*:*:*:*:*:* Versions 1.2.2 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.4.0:*:*:*:*:*:*:* Versions 1.4.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.5.1:*:*:*:*:*:*:* Versions 1.5.1 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.0:*:*:*:*:*:*:* Versions 1.6.0 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.1:*:*:*:*:*:*:* Versions 1.6.1 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.2:*:*:*:*:*:*:* Versions 1.6.2 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.3:*:*:*:*:*:*:* Versions 1.6.3 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.4:*:*:*:*:*:*:* Versions 1.6.4 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.5:*:*:*:*:*:*:* Versions 1.6.5 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.6:*:*:*:*:*:*:* Versions 1.6.6 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.7:*:*:*:*:*:*:* Versions 1.6.7 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.8:*:*:*:*:*:*:* Versions 1.6.8 Vulnerable ·NLNETLABS
- cpe:2.3:a:nlnetlabs:ldns:1.6.9:*:*:*:*:*:*:* Versions 1.6.9 Vulnerable ·NLNETLABS
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2011-3581
- 2026-10-03 Alias added: GHSA-jv88-pfrr-vvgm
References
More NLNETLABS Ldns vulnerabilities
- TI-2017-14547 A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors. CVSS 3.0CRITICAL 9.8
- TI-2017-14548 A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors. CVSS 3.0CRITICAL 9.8
- TI-2020-13719 When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too… CVSS 3.1HIGH 7.5
- TI-2026-09311 Insufficient verification that responses belong to a query CVSS 4.0HIGH 8.2
- TI-2009-01040 Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x… CVSS 2.0MEDIUM 6.4
- TI-2020-13718 When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2011-3581 · CVE Program
- CVE-2011-3581 · NVD
- FIRST EPSS
- GHSA-jv88-pfrr-vvgm · GitHub Advisory Database · CC BY 4.0
- CVE-2011-3581 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences