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Vendor Haproxy First view 2019-03-21
Product Haproxy Last view 2020-04-02
Version 1.9.0 Type Application
Update dev5  
Edition *  
Language *  
Sofware Edition *  
Target Software *  
Target Hardware *  
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CPE Product cpe:2.3:a:haproxy:haproxy

Activity : Overall

Related : CVE

  Date Alert Description
8.8 2020-04-02 CVE-2020-11100

In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.

9.8 2019-11-27 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.

7.5 2019-10-23 CVE-2019-18277

A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the "chunked" value were not being correctly rejected. The impact was limited but if combined with the "http-reuse always" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).

7.5 2019-07-23 CVE-2019-14241

HAProxy through 2.0.2 allows attackers to cause a denial of service (ha_panic) via vectors related to htx_manage_client_side_cookies in proto_htx.c.

5.9 2019-05-09 CVE-2019-11323

HAProxy before 1.9.7 mishandles a reload with rotated keys, which triggers use of uninitialized, and very predictable, HMAC keys. This is related to an include/types/ssl_sock.h error.

7.5 2019-03-21 CVE-2018-20615

An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.

CWE : Common Weakness Enumeration

20% (1) CWE-787 Out-of-bounds Write
20% (1) CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggli...
20% (1) CWE-327 Use of a Broken or Risky Cryptographic Algorithm
20% (1) CWE-125 Out-of-bounds Read
20% (1) CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')

Snort® IPS/IDS

Date Description
2019-10-24 HAProxy cookie denial of service attempt
RuleID : 51596 - Type : SERVER-OTHER - Revision : 1
2019-10-24 HAProxy cookie denial of service attempt
RuleID : 51595 - Type : SERVER-OTHER - Revision : 1
2019-10-24 HAProxy cookie denial of service attempt
RuleID : 51594 - Type : SERVER-OTHER - Revision : 1