When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.
References
| Link | Resource |
|---|---|
| https://cwe.mitre.org/data/definitions/126.html | Third Party Advisory |
| https://github.com/NLnetLabs/ldns/issues/51 | Exploit Issue Tracking Third Party Advisory |
Configurations
History
05 Oct 2022, 17:08
| Type | Values Removed | Values Added |
|---|---|---|
| References | (MISC) https://cwe.mitre.org/data/definitions/126.html - Third Party Advisory |
12 Jul 2022, 17:42
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-125 |
10 Jul 2022, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
27 Jan 2022, 17:04
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:nlnetlabs:ldns:1.7.1:*:*:*:*:*:*:* | |
| CWE | CWE-120 | |
| CVSS |
v2 : v3 : |
v2 : 5.0
v3 : 7.5 |
| References | (MISC) https://github.com/NLnetLabs/ldns/issues/51 - Exploit, Issue Tracking, Third Party Advisory | |
| First Time |
Nlnetlabs
Nlnetlabs ldns |
21 Jan 2022, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-01-21 15:15
Updated : 2023-12-10 14:09
NVD link : CVE-2020-19861
Mitre link : CVE-2020-19861
CVE.ORG link : CVE-2020-19861
JSON object : View
Products Affected
nlnetlabs
- ldns
CWE
CWE-125
Out-of-bounds Read