VULNERABILITY INTELLIGENCE

CVE-2020-10739

CVSS score7.5 HIGH

EPSS probability2.39%

CISA KEVNot currently listed

Published2020-06-02

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a specially crafted packet, an attacker could trigger a Null Pointer Exception resulting in a Denial of Service. This could be sent to the ingress gateway or a sidecar, triggering a null pointer exception which results in a denial of service. This also affects servicemesh-proxy where a null pointer exception flaw was found in servicemesh-proxy. When running Telemetry v2 (not on by default in version 1.4.x), an attacker could send a specially crafted packet to the ingress gateway or proxy sidecar, triggering a denial of service.

Weakness classification

secalert@redhat.com: CWE-476
nvd@nist.gov: CWE-476

Primary references

secalert@redhat.com — Broken Link, Issue Tracking, Third Party Advisory
secalert@redhat.com — Patch, Third Party Advisory
secalert@redhat.com — Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory