9.8

CVE-2021-45953

Exploit
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Thekelleys ≫ Dnsmasq Version 2.86
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.59% 0.833
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
Third Party Advisory
Mailing List
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html
Third Party Advisory
Mailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858
Third Party Advisory
Exploit
Issue Tracking
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml
Third Party Advisory