GO-2023-1704

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Source

https://pkg.go.dev/vuln/GO-2023-1704

Import Source

https://vuln.go.dev/ID/GO-2023-1704.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2023-1704

Aliases

Published

2023-04-05T21:04:28Z

Modified

2024-05-20T16:03:47Z

Summary

Excessive memory allocation in net/http and net/textproto

Details

HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service.

Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service.

With fix, header parsing now correctly allocates only the memory required to hold parsed headers.

References

Credits

- Jakob Ackermann (@das7pad)

Affected packages

Go / stdlib

Package

Name: stdlib; View open source insights on deps.dev
Purl: pkg:golang/stdlib

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.19.8

Introduced

1.20.0-0

Fixed

1.20.3

Ecosystem specific

{
    "imports": [
        {
            "path": "net/textproto",
            "symbols": [
                "Reader.ReadMIMEHeader",
                "Reader.upcomingHeaderNewlines",
                "readMIMEHeader"
            ]
        }
    ]
}