CVE-2023-27371

libmicrohttpd: remote DoS

Published Feb 28, 2023 CVSS 3.1 · 5.9 Medium EPSS 1.3% KEV · Not listed
Description
GNU libmicrohttpd before 0.9.76 allows remote DoS (Denial of Service) due to improper parsing of a multipart/form-data boundary in the postprocessor.c MHD_create_post_processor() method. This allows an attacker to remotely send a malicious HTTP POST packet that includes one or more '\0' bytes in a multipart/form-data boundary field, which - assuming a specific heap layout - will result in an out-of-bounds read and a crash in the find_boundary() function.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3374-1 libmicrohttpd security update
EUVD EUVD EUVD-2023-31147 GNU libmicrohttpd before 0.9.76 allows remote DoS (Denial of Service) due to improper parsing of a multipart/form-data boundary in the postprocessor.c MHD_create_post_processor() method. This allows an attacker to remotely send a malicious HTTP POST packet that includes one or more '\0' bytes in a multipart/form-data boundary field, which - assuming a specific heap layout - will result in an out-of-bounds read and a crash in the find_boundary() function.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 10:32 PM
Reserved
Feb 28, 2023, 12:00 AM
Status
Modified
Published
Feb 28, 2023, 8:15 PM
Modified
Oct 14, 2026, 11:17 PM
Severity
Moderate
Public date
Feb 28, 2023, 12:00 AM