CVE Vulnerability

CVE-2020-19860

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/NLnetLabs/ldns/issues/50 Exploit Issue Tracking
https://github.com/NLnetLabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nlnetlabs:ldns:1.7.1:*:*:*:*:*:*:*
Information

Published : 2022-01-21 02:15

Updated : 2022-01-27 04:36

NVD link : CVE-2020-19860

Mitre link : CVE-2020-19860

Products Affected

Ldns

Nlnetlabs

CWE
CWE-125

Out-of-bounds Read