Use-after-free in envoy - CVE-2023-35942
Published: July 26, 2023
Vulnerability identifier: #VU78682
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-35942
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the gRPC access logger extension. A remote user can perform a denial of service (DoS) attack.
Affected software
envoy
Amazon Linux AMI
Istio
OpenShift Service Mesh
Amazon Linux AMI
Istio
OpenShift Service Mesh
How to mitigate CVE-2023-35942
Install updates from vendor's website.
envoy - addressed in versions 1.23.12, 1.24.10, 1.25.9, 1.26.4
Istio - addressed in versions 1.16.7, 1.17.5, 1.18.2
OpenShift Service Mesh - addressed in versions 2.3.6, 2.4.3
Istio - addressed in versions 1.16.7, 1.17.5, 1.18.2
OpenShift Service Mesh - addressed in versions 2.3.6, 2.4.3
External References
Related Security Bulletins
- Multiple vulnerabilities in Envoy
- Multiple vulnerabilities in Istio
- Multiple vulnerabiltiies in Red Hat OpenShift Service Mesh Containers 2.3
- Multiple vulnerabilities in Red Hat OpenShift Service Mesh Containers 2.4
- Amazon Linux AMI update for ecs-service-connect-agent
- Amazon Linux AMI update for ecs-service-connect-agent