CVE-2021-45956critical
Description
** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). 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."
References
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
Details
Source: MITRE
Published: 2022-01-01
Updated: 2022-03-18
Type: CWE-787
Risk Information
CVSS v2
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
CVSS v3
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL