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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

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

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

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

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2022-01-21 14:15

Updated : 2024-11-21 05:09

NVD link : CVE-2020-19860

Mitre link : CVE-2020-19860

CVE.ORG link : CVE-2020-19860

JSON object : View

Products Affected

nlnetlabs

ldns

CWE

CWE-125

Out-of-bounds Read

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