CVE-2019-19330 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Severity

98%

Complexity

39%

Confidentiality

98%

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.

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 3.1 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 5 years ago

2019-11-27 16:15:00

Last updated 4 years ago

2020-04-01 21:15:00

Affected Software

HAProxy

Canonical Ubuntu Linux 18.04 LTS Edition

18.04

Canonical Ubuntu Linux 19.04

19.04

Canonical Ubuntu Linux 19.10

19.10

Debian Linux 10

10

References

https://git.haproxy.org/?p=haproxy.git;a=commit;h=146f53ae7e97dbfe496d0445c2802dd0a30b0878

Patch

https://git.haproxy.org/?p=haproxy.git;a=commit;h=54f53ef7ce4102be596130b44c768d1818570344

Patch

https://git.haproxy.org/?p=haproxy-2.0.git;a=commit;h=ac198b92d461515551b95daae20954b3053ce87e

Patch

20191128 [SECURITY] [DSA 4577-1] haproxy security update

Mailing List, Third Party Advisory

GLSA-202004-01

https://tools.ietf.org/html/rfc7540#section-10.3

Third Party Advisory

USN-4212-1

Third Party Advisory

DSA-4577

Third Party Advisory

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