// For flags

CVE-2020-19860

Ubuntu Security Notice USN-5257-1

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

Cuando ldns versión 1.7.1, verifica un archivo de zona, la función ldns_rr_new_frm_str_internal presenta una vulnerabilidad de lectura fuera de límites de la pila. Un atacante puede filtrar información en la pila al construir una carga útil de archivo de zona

It was discovered that ldns incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-13 CVE Reserved
  • 2022-01-21 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nlnetlabs
Search vendor "Nlnetlabs"
 Ldns
Search vendor "Nlnetlabs" for product "Ldns"
 1.7.1
Search vendor "Nlnetlabs" for product "Ldns" and version "1.7.1"
-
Affected