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Test ID:1.3.6.1.4.1.25623.1.0.147385
Category:Buffer overflow
Title:Dnsmasq <= 2.86 Multiple Vulnerabilities
Summary:Dnsmasq is prone to multiple vulnerabilities.
Description:Summary:
Dnsmasq is prone to multiple vulnerabilities.

Vulnerability Insight:
The following flaws exist:

- CVE-2021-45951: Heap-based buffer overflow in check_bad_address

- CVE-2021-45952: Heap-based buffer overflow in dhcp_reply

- CVE-2021-45953: Heap-based buffer overflow in extract_name

- CVE-2021-45954: Heap-based buffer overflow in extract_name

- CVE-2021-45955: Heap-based buffer overflow in resize_packet

- CVE-2021-45956: Heap-based buffer overflow in print_mac

- CVE-2021-45957: Heap-based buffer overflow in answer_request

Note: The CVEs above have been changed to status 'DISPUTED'

- CVE-2022-0934: Heap use after free in dhcp6_no_relay

Affected Software/OS:
Dnsmasq version 2.86 and prior.

Solution:
Update to version 2.87 or later.

CVSS Score:
7.5

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-45951
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=35868
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2021-45952
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2021-45953
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
Common Vulnerability Exposure (CVE) ID: CVE-2021-45954
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2021-45955
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2021-45956
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2021-45957
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml
Common Vulnerability Exposure (CVE) ID: CVE-2022-0934
https://access.redhat.com/security/cve/CVE-2022-0934
https://bugzilla.redhat.com/show_bug.cgi?id=2057075
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39
CopyrightCopyright (C) 2022 Greenbone Networks GmbH

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