A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2021-01-20T16:36:41

Updated: 2021-03-22T20:06:12

Reserved: 2020-09-16T00:00:00


Link: CVE-2020-25681

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2021-01-20T17:15:12.843

Modified: 2023-11-07T03:20:21.790


Link: CVE-2020-25681

JSON object: View

cve-icon Redhat Information

No data.

CWE