CVE-2019-9900 MEDIUM

CVE-2019-9900

Vendor N/A
Product n/a
Published April 25, 2019
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.0/AC:H/AV:N/A:L/C:L/I:L/PR:N/S:C/UI:N

What the vulnerability does

01Description

When parsing HTTP/1.x header values, Envoy 1.9.0 and before does not reject embedded zero characters (NUL, ASCII 0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.

Key dates

02Disclosure timeline

April 25, 2019 CVE published
August 4, 2024 Record updated