Reliance on undefined behavior in Wasmtime
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-30624 |
| CWE-ID | CWE-758 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Wasmtime Web applications / Modules and components for CMS |
| Vendor | Bytecode Alliance |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Reliance on undefined behavior
EUVDB-ID: #VU75586
Risk: Low
CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-30624
CWE-ID:
CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to influence application's behavior.
The vulnerability exists due to LLVM-level undefined behavior when managing per-instance state. A remote attacker can leverage this vulnerability to cause runtime-level issues when compiled with LLVM 16, which can influence application behavior.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWasmtime: 6.0.0 - 8.0.0
External linkshttp://github.com/bytecodealliance/wasmtime/commit/0977952dcd9d482bff7c288868ccb52769b3a92e
http://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-ch89-5g45-qwc7
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.
