CVE-2021-3466

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Summary

CVECVE-2021-3466
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-25 19:15:00 UTC
Updated2023-11-25 09:15:00 UTC
DescriptionA flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.

Risk And Classification

Problem Types: CWE-120

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Application Gnu Libmicrohttpd All All All All
Application Gnu Libmicrohttpd 0.9.70 All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All

References

ReferenceSourceLinkTags
GNU Libmicrohttpd: Buffer Overflow Vulnerability (GLSA 202311-08) — Gentoo security security.gentoo.org
1939127 – (CVE-2021-3466) CVE-2021-3466 libmicrohttpd: Buffer overflow issue in URL parser in the post_process_urlencoded function MISC bugzilla.redhat.com
[SECURITY] Fedora 34 Update: libmicrohttpd-0.9.73-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 33 Update: libmicrohttpd-0.9.73-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 34 Update: libmicrohttpd-0.9.73-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 33 Update: libmicrohttpd-0.9.73-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: libmicrohttpd-0.9.73-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 32 Update: libmicrohttpd-0.9.73-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180158 Debian Security Update for libmicrohttpd (CVE-2021-3466)
  • 281257 Fedora Security Update for libmicrohttpd (FEDORA-2021-6d5578e756)
  • 281258 Fedora Security Update for libmicrohttpd (FEDORA-2021-d4149ff7fb)
  • 281259 Fedora Security Update for libmicrohttpd (FEDORA-2021-5e10ad8c19)
  • 710794 Gentoo Linux GNU Libmicrohttpd Buffer Overflow Vulnerability (GLSA 202311-08)
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