CVE-2021-45953 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00046.

Key SSVC decision points have not yet been added.

Vendors	Products
Thekelleys	Dnsmasq

Configuration 1 [-]

cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
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://nvd.nist.gov/vuln/detail/CVE-2021-45953
https://www.cve.org/CVERecord?id=CVE-2021-45953

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-12-31T23:52:10

Updated: 2024-08-04T04:54:31.143Z

Reserved: 2021-12-31T00:00:00

Link: CVE-2021-45953

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-01-01T00:15:08.593

Modified: 2024-11-21T06:33:21.113

Link: CVE-2021-45953

Redhat

Severity :

Publid Date: 2022-01-01T00:00:00Z

Links: CVE-2021-45953 - Bugzilla

OpenCVE Enrichment

No data.

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