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CVE-2019-9516

Published: August 31, 2023Last modified: August 31, 2023

Description

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

Severity score breakdown

ParameterValue
Base score6.5
Attack VectorNETWORK
Attack complexityLOW
Privileges requiredLOW
User interactionNONE
ScopeUNCHANGED
ConfidentialityNONE
Integrity impactNONE
Availability impactHIGH
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSnginxNot affected (1.22.1-r0)
nodejsNot affected (18.17.1-r0)
StreamnginxNot affected (1.24.0-r11)
nodejsNot affected (18.17.1-r0)

References

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