#VU95800 Use-after-free in PyTorch - CVE-2024-31583

Vulnerability identifier: #VU95800

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-31583

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PyTorch
Universal components / Libraries / Programming Languages & Components

Vendor: pytorch

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in torch/csrc/jit/mobile/interpreter.cpp. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PyTorch: 2.0.0 - 2.1.0

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External links
https://github.com/pytorch/pytorch/commit/9c7071b0e324f9fb68ab881283d6b8d388a4bcd2
https://github.com/pytorch/pytorch/blob/v2.1.2/torch/csrc/jit/mobile/interpreter.cpp#L132
https://gist.github.com/1047524396/43e19a41f2b36503a4a228c32cdbc176

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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