Out-of-bounds read in Istio - CVE-2022-31045

Vulnerability identifier: #VU64153

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-31045

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the Ill-formed headers. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.

Istio
OpenShift Service Mesh
servicemesh-ratelimit (Red Hat package)
servicemesh-operator (Red Hat package)
servicemesh (Red Hat package)
servicemesh-proxy (Red Hat package)
servicemesh-prometheus (Red Hat package)

Install updates from vendor's website.

Note, the 1.14.2 or 1.13.6 versions are affected by this vulnerability due to process issues on the vendor's side.

Istio - addressed in versions 1.12.8, 1.13.5, 1.14.1
OpenShift Service Mesh - update to 2.1.3
servicemesh-ratelimit (Red Hat package) - update to 2.1.3-1.el8
servicemesh-operator (Red Hat package) - update to 2.1.3-2.el8
servicemesh (Red Hat package) - update to 2.1.3-1.el8
servicemesh-proxy (Red Hat package) - update to 2.1.3-1.el8
servicemesh-prometheus (Red Hat package) - update to 2.23.0-7.el8

• https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68x
• https://istio.io/latest/news/security/istio-security-2022-05
• https://istio.io/latest/news/security/istio-security-2022-006

• Denial of service in Istio
• Multiple vulnerabilities in Red Hat OpenShift Service Mesh 2.1
• Multiple vulnerabilities in Red Hat OpenShift Service Mesh 2.1