CVE-2020-19861
Description
When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.
Risk Information
Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
0.332
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| ldns library for DNS programming (USN-5257-1) libldns2_1.7.0-3ubuntu4.1_i386.deb | Linux |
| ldns library for DNS programming (USN-5257-1) libldns2_1.7.0-3ubuntu4.1_amd64.deb | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234