Reliance on undefined behavior in Wasmtime - CVE-2023-30624
Published: April 28, 2023
Vulnerability identifier: #VU75586
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-30624
CWE-ID: CWE-758
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The 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.
Affected software
Wasmtime
Amazon Linux AMI
envoy
Amazon Linux AMI
envoy
How to mitigate CVE-2023-30624
Install updates from vendor's website.
Wasmtime - addressed in versions 6.0.2, 7.0.1, 8.0.1
envoy - addressed in versions 1.23.10, 1.24.8, 1.25.7, 1.26.2
envoy - addressed in versions 1.23.10, 1.24.8, 1.25.7, 1.26.2