CVE-2019-19330

Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 27 Nov 2019, 15:53
Last modified:05 Aug 2024, 02:16

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
1.06% LOW
1% probability +0.10%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Nov 2019, 15:53
Published
Vulnerability first disclosed
05 Aug 2024, 02:16
Last Modified
Vulnerability information updated

Description

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 1.06%• Percentile: 78%

Techniques & Countermeasures

  • CWE-74•Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

    The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Systems

  • canonical•ubuntu_linux

    18.04 | 19.04 | 19.10

  • debian•debian_linux

    10.0

  • haproxy•haproxy

    < 2.0.10

References (8)