CVE-2023-45290: DoS (CVSS 6.5)

Description

When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-770 CWE-770

References

Other References

http://www.openwall.com/lists/oss-security/2024/03/08/4 https://go.dev/cl/569341 https://go.dev/issue/65383 https://groups.google.com/g/golang-announce/c/5pwGVUPoMbg https://pkg.go.dev/vuln/GO-2024-2599 https://security.netapp.com/advisory/ntap-20240329-0004/ http://www.openwall.com/lists/oss-security/2024/03/08/4 https://go.dev/cl/569341 https://go.dev/issue/65383 https://groups.google.com/g/golang-announce/c/5pwGVUPoMbg

Frequently Asked Questions

What is CVE-2023-45290? +

When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2023-45290? +

CVE-2023-45290 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-45290? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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