CVE-2023-24536
Excessive resource consumption in net/http, net/textproto and mime/multipart
Description
Multipart form parsing can consume large amounts of CPU and memory when processing form inputs containing very large numbers of parts. This stems from several causes: 1. mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form can consume. ReadForm can undercount the amount of memory consumed, leading it to accept larger inputs than intended. 2. Limiting total memory does not account for increased pressure on the garbage collector from large numbers of small allocations in forms with many parts. 3. ReadForm can allocate a large number of short-lived buffers, further increasing pressure on the garbage collector. The combination of these factors can permit an attacker to cause an program that parses multipart forms to consume large amounts of CPU and memory, potentially resulting in a denial of service. This affects programs that use mime/multipart.Reader.ReadForm, as well as form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. With fix, ReadForm now does a better job of estimating the memory consumption of parsed forms, and performs many fewer short-lived allocations. In addition, the fixed mime/multipart.Reader imposes the following limits on the size of parsed forms: 1. Forms parsed with ReadForm may contain no more than 1000 parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxparts=. 2. Form parts parsed with NextPart and NextRawPart may contain no more than 10,000 header fields. In addition, forms parsed with ReadForm may contain no more than 10,000 header fields across all parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxheaders=.
INFO
Published Date :
April 6, 2023, 4:15 p.m.
Last Modified :
Feb. 12, 2025, 6:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade to Golang Go version 1.19.8, 1.20.3, or later.
- Update affected packages via your system's package manager.
Public PoC/Exploit Available at Github
CVE-2023-24536 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2023-24536.
| URL | Resource |
|---|---|
| https://go.dev/cl/482075 | Patch |
| https://go.dev/cl/482076 | Patch |
| https://go.dev/cl/482077 | Patch |
| https://go.dev/issue/59153 | Issue Tracking Patch |
| https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8 | Mailing List |
| https://pkg.go.dev/vuln/GO-2023-1705 | Vendor Advisory |
| https://security.gentoo.org/glsa/202311-09 | |
| https://security.netapp.com/advisory/ntap-20230526-0007/ | |
| https://go.dev/cl/482075 | Patch |
| https://go.dev/cl/482076 | Patch |
| https://go.dev/cl/482077 | Patch |
| https://go.dev/issue/59153 | Issue Tracking Patch |
| https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8 | Mailing List |
| https://pkg.go.dev/vuln/GO-2023-1705 | Vendor Advisory |
| https://security.gentoo.org/glsa/202311-09 | |
| https://security.netapp.com/advisory/ntap-20230526-0007/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-24536 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-2023-24536
weaknesses.
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).
A powerful Kubernetes debugging tool that enables network capture, command execution, and file operations across multiple pods and nodes simultaneously through privileged debug pods.
Shell
None
All Public RunWhen Helm Charts - Managed by terraform
Smarty Shell Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-24536 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-24536 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 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://go.dev/cl/482075 Added Reference https://go.dev/cl/482076 Added Reference https://go.dev/cl/482077 Added Reference https://go.dev/issue/59153 Added Reference https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8 Added Reference https://pkg.go.dev/vuln/GO-2023-1705 Added Reference https://security.gentoo.org/glsa/202311-09 Added Reference https://security.netapp.com/advisory/ntap-20230526-0007/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 25, 2023
Action Type Old Value New Value Added Reference Go Project https://security.gentoo.org/glsa/202311-09 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Go Project CWE-400 -
CVE Modified by [email protected]
May. 26, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20230526-0007/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 17, 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://go.dev/cl/482075 No Types Assigned https://go.dev/cl/482075 Patch Changed Reference Type https://go.dev/cl/482076 No Types Assigned https://go.dev/cl/482076 Patch Changed Reference Type https://go.dev/cl/482077 No Types Assigned https://go.dev/cl/482077 Patch Changed Reference Type https://go.dev/issue/59153 No Types Assigned https://go.dev/issue/59153 Issue Tracking, Patch Changed Reference Type https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8 No Types Assigned https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8 Mailing List Changed Reference Type https://pkg.go.dev/vuln/GO-2023-1705 No Types Assigned https://pkg.go.dev/vuln/GO-2023-1705 Vendor Advisory Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions up to (excluding) 1.19.8 *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions from (including) 1.20.0 up to (excluding) 1.20.3
Vulnerability Scoring Details
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.20598
percentile