5.9
MEDIUM
CVE-2023-27371
Apache libmicrohttpd Heap-based Buffer OverflowREMOTE DoS
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.

INFO

Published Date :

Feb. 28, 2023, 8:15 p.m.

Last Modified :

March 31, 2023, 12:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2023-27371 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnu libmicrohttpd
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-27371.

URL Resource
https://git.gnunet.org/libmicrohttpd.git/commit/?id=6d6846e20bfdf4b3eb1b592c97520a532f724238 Patch
https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00029.html
https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html Mailing List

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-27371 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-27371 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 31, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00029.html [No Types Assigned]
  • Reanalysis by [email protected]

    Mar. 16, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Initial Analysis by [email protected]

    Mar. 10, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.gnunet.org/libmicrohttpd.git/commit/?id=6d6846e20bfdf4b3eb1b592c97520a532f724238 No Types Assigned https://git.gnunet.org/libmicrohttpd.git/commit/?id=6d6846e20bfdf4b3eb1b592c97520a532f724238 Patch
    Changed Reference Type https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd No Types Assigned https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd Exploit, Third Party Advisory
    Changed Reference Type https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html No Types Assigned https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html Mailing List
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:gnu:libmicrohttpd:*:*:*:*:*:*:*:* versions up to (excluding) 0.9.76
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-27371 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-27371 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} 0.01%

score

0.44866

percentile

CVSS31 - Vulnerability Scoring System
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