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Vendor Haproxy First view 2014-09-30
Product Haproxy Last view 2020-04-02
Version 1.5 Type Application
Update dev23  
Edition *  
Language *  
Sofware Edition *  
Target Software *  
Target Hardware *  
Other *  
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.

7.5 2018-12-12 CVE-2018-20103

An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion.

7.5 2018-12-12 CVE-2018-20102

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.

7.5 2018-09-21 CVE-2018-14645

A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.

5.9 2018-05-25 CVE-2018-11469

Incorrect caching of responses to requests including an Authorization header in HAProxy 1.8.0 through 1.8.9 (if cache enabled) allows attackers to achieve information disclosure via an unauthenticated remote request, related to the proto_http.c check_request_for_cacheability function.

7.5 2018-05-09 CVE-2018-10184

An issue was discovered in HAProxy before 1.8.8. The incoming H2 frame length was checked against the max_frame_size setting instead of being checked against the bufsize. The max_frame_size only applies to outgoing traffic and not to incoming, so if a large enough frame size is advertised in the SETTINGS frame, a wrapped frame will be defragmented into a temporary allocated buffer where the second fragment may overflow the heap by up to 16 kB. It is very unlikely that this can be exploited for code execution given that buffers are very short lived and their addresses not realistically predictable in production, but the likelihood of an immediate crash is absolutely certain.

5 2014-09-30 CVE-2014-6269

Multiple integer overflows in the http_request_forward_body function in proto_http.c in HAProxy 1.5-dev23 before 1.5.4 allow remote attackers to cause a denial of service (crash) via a large stream of data, which triggers a buffer overflow and an out-of-bounds read.

CWE : Common Weakness Enumeration

30% (3) CWE-125 Out-of-bounds Read
10% (1) CWE-787 Out-of-bounds Write
10% (1) CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggli...
10% (1) CWE-327 Use of a Broken or Risky Cryptographic Algorithm
10% (1) CWE-200 Information Exposure
10% (1) CWE-189 Numeric Errors
10% (1) CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
10% (1) CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')

Snort® IPS/IDS

Date Description
2019-11-03 HAProxy H2 Frame heap memory corruption attempt
RuleID : 51725 - Type : SERVER-WEBAPP - Revision : 1
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

Nessus® Vulnerability Scanner

id Description
2019-01-03 Name: The remote Fedora host is missing a security update.
File: fedora_2018-0b038c7047.nasl - Type: ACT_GATHER_INFO
2019-01-03 Name: The remote Fedora host is missing a security update.
File: fedora_2018-381ab64b59.nasl - Type: ACT_GATHER_INFO
2019-01-03 Name: The remote Fedora host is missing a security update.
File: fedora_2018-941d094624.nasl - Type: ACT_GATHER_INFO
2014-09-25 Name: The remote CentOS host is missing a security update.
File: centos_RHSA-2014-1292.nasl - Type: ACT_GATHER_INFO
2014-09-25 Name: The remote Oracle Linux host is missing a security update.
File: oraclelinux_ELSA-2014-1292.nasl - Type: ACT_GATHER_INFO
2014-09-24 Name: The remote Red Hat host is missing one or more security updates.
File: redhat-RHSA-2014-1292.nasl - Type: ACT_GATHER_INFO