CVE-2020-19860
First published: Fri Jan 21 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nlnetlabs Ldns | =1.7.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-19860?
CVE-2020-19860 is a vulnerability in ldns version 1.7.1 that allows an attacker to leak information on the heap by constructing a malicious zone file payload.
How severe is CVE-2020-19860?
CVE-2020-19860 has a severity value of 6.5 which is considered medium.
How does CVE-2020-19860 affect the ldns software?
CVE-2020-19860 affects ldns version 1.7.1 and can be exploited when verifying a zone file using the ldns_rr_new_frm_str_internal function.
Is there a fix available for CVE-2020-19860?
Yes, a fix for CVE-2020-19860 has been provided in the ldns version 1.7.2 release.
Where can I find more information about CVE-2020-19860?
You can find more information about CVE-2020-19860 in the following references: [GitHub commit](https://github.com/NLnetLabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3) and [GitHub issue](https://github.com/NLnetLabs/ldns/issues/50).
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