Vulnerability CVE-2019-19330
Published: 2019-11-27   Modified: 2019-11-29

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.

Type:

CWE-74

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Haproxy -> Haproxy 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
https://git.haproxy.org/?p=haproxy.git;a=commit;h=146f53ae7e97dbfe496d0445c2802dd0a30b0878
https://git.haproxy.org/?p=haproxy.git;a=commit;h=54f53ef7ce4102be596130b44c768d1818570344
https://git.haproxy.org/?p=haproxy-2.0.git;a=commit;h=ac198b92d461515551b95daae20954b3053ce87e
https://seclists.org/bugtraq/2019/Nov/45
https://tools.ietf.org/html/rfc7540#section-10.3
https://usn.ubuntu.com/4212-1/
https://www.debian.org/security/2019/dsa-4577
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