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CVE-2020-19860

Related Vulnerabilities: 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.

Source

Description

The MITRE CVE dictionary describes this issue as:

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.

Additional Information

  • Bugzilla 2044427: CVE-2020-19860 ldns: heap overread vulnerability via zone file
  • CWE-119->CWE-120: Improper Restriction of Operations within the Bounds of a Memory Buffer leads to Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • FAQ: Frequently asked questions about CVE-2020-19860

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