Vulnerability Monitor

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CVE-2019-19330

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.

Published

2019-11-27T16:15:11.720

Last Modified

2024-11-21T04:34:35.250

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-74

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	haproxy	haproxy	< 2.0.10	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes
Operating System	canonical	ubuntu_linux	19.10	Yes
Operating System	debian	debian_linux	10.0	Yes

References

https://git.haproxy.org/?p=haproxy-2.0.git%3Ba=commit%3Bh=ac198b92d461515551b95daae20954b3053ce87e ([email protected])
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=146f53ae7e97dbfe496d0445c2802dd0a30b0878 ([email protected])
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=54f53ef7ce4102be596130b44c768d1818570344 ([email protected])
https://seclists.org/bugtraq/2019/Nov/45 Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202004-01 ([email protected])
https://tools.ietf.org/html/rfc7540#section-10.3 Third Party Advisory ([email protected])
https://usn.ubuntu.com/4212-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2019/dsa-4577 Third Party Advisory ([email protected])
https://git.haproxy.org/?p=haproxy-2.0.git%3Ba=commit%3Bh=ac198b92d461515551b95daae20954b3053ce87e (af854a3a-2127-422b-91ae-364da2661108)
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=146f53ae7e97dbfe496d0445c2802dd0a30b0878 (af854a3a-2127-422b-91ae-364da2661108)
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=54f53ef7ce4102be596130b44c768d1818570344 (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Nov/45 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202004-01 (af854a3a-2127-422b-91ae-364da2661108)
https://tools.ietf.org/html/rfc7540#section-10.3 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4212-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4577 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)