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4.3
CVSSv2

CVE-2020-19860

Published: 21/01/2022 Updated: 27/01/2022
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
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Vulnerability Summary

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.

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nlnetlabs ldns 1.7.1

Vendor Advisories

Ubuntu Security Notice: USN-5257-1: ldns vulnerabilities
ldns could be made to expose sensitive information if it received a specially crafted input ...
Amazon Linux 2: ALAS2-2023-2032
When ldns version 171 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 (CVE-2020-19860) ...
Red Hat: CVE-2020-19860
When ldns version 171 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 ...

References

CWE-125https://github.com/NLnetLabs/ldns/issues/50https://github.com/NLnetLabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3https://ubuntu.com/security/notices/USN-5257-1https://nvd.nist.govhttps://alas.aws.amazon.com/AL2/ALAS-2023-2032.html
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
encryptionCVE-2024-4331CVE-2024-26925arbitrary codeCVE-2006-4304CVE-2024-25458CVE-2024-27077reflected XSSCVE-2024-4059
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