CVE-2024-52303: aiohttp — Fix

Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions starting with 3.10.6 and prior to 3.10.11, a memory leak can occur when a request produces a MatchInfoError. This was caused by adding an entry to a cache on each request, due to the building of each MatchInfoError producing a unique cache entry. An attacker may be able to exhaust the memory resources of a server by sending a substantial number (100,000s to millions) of such requests. Those who use any middlewares with aiohttp.web should upgrade to version 3.10.11 to receive a patch.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-772 CWE-772

Affected Products

Vendor	Product	Versions
aiohttp	aiohttp	3.10.6 — 3.10.11

References

Advisories & Patches

https://github.com/aio-libs/aiohttp/commit/bc15db61615079d1b6327ba42c682f758fa96936 https://github.com/aio-libs/aiohttp/security/advisories/GHSA-27mf-ghqm-j3j8

Frequently Asked Questions

What is CVE-2024-52303? +

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions starting with 3.10.6 and prior to 3.10.11, a memory leak can occur when a request produces a MatchInfoError. This was caused by adding an entry to a cache on each request, due to the building of each MatchInfoError producing a unique cache entry. An attacker may be able to exhaust the memory resources of a server by sending a substantial number (100,000s to millions) of such requests. Those who use any middlewares with aiohttp.web should upgrade to version 3.10.11 to receive a patch. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-52303? +

CVE-2024-52303 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-52303? +

CVE-2024-52303 affects products from aiohttp, specifically: aiohttp. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-52303? +

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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