Vulnerability Details CVE-2021-45953
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 13.9%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html
Products affected by CVE-2021-45953
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cpe:2.3:a:thekelleys:dnsmasq:2.86