CVE-2022-31045
In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.18% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- istio/istio
- Source
- security-advisories@github.com
References
- https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68xThird Party Advisory
- https://istio.io/latest/news/security/istio-security-2022-05Broken Link
- https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68xThird Party Advisory
- https://istio.io/latest/news/security/istio-security-2022-05Broken Link
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.