CVE-2020-19860
MEDIUM
6.5
CVSS Score
Published: January 21, 2022 at 01:40 PM UTC
Updated: June 17, 2026 at 02:59 AM UTC
1 product affected across 1 vendorLdns
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/NLnetLabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/NLnetLabs/ldns/issues/50CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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