#VU100601 Memory leak in aiohttp - CVE-2024-52303

Vulnerability identifier: #VU100601

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-52303

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
aiohttp
Other software / Other software solutions

Vendor: aio-libs

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when a request produces a MatchInfoError. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

aiohttp: 3.10.6 - 3.10.10

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.