CVE-2024-32475 — Incorrect Check of Function Return Value in Envoy

CWE-253 — Incorrect Check of Function Return ValueCWE-617 — Reachable AssertionCWE-1284 — Improper Validation of Specified Quantity in Input2 documents2 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 65.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Envoyproxy Envoy
Timeline
PublishedApr 18

Description

Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with `auto_sni` enabled, a request containing a `host`/`:authority` header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when setting SNI for outbound TLS connection. The error can occur when Envoy attempts to use the `host`/`:authority` header value longer than 255 characters as SNI for outbound TLS connection. SNI length is …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDenvoyproxy/envoy1.13.0 — 1.27.5+3
▶CVEListV5envoyproxy/envoy4 versions+3

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

📋Vendor Advisories

1
Red Hat
envoy: abnormal termination when using auto_sni with authority header longer than 255 characters↗2024-04-18
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