CVE-2021-40346

An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.
References
Link Resource
https://git.haproxy.org/?p=haproxy.git Patch Vendor Advisory
https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95 Patch Third Party Advisory
https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/ Exploit Mitigation Third Party Advisory
https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc4108779c50a97c79120%40%3Cdev.cloudstack.apache.org%3E
https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a%40%3Cdev.cloudstack.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/
https://www.debian.org/security/2021/dsa-4968 Third Party Advisory
https://www.mail-archive.com/haproxy%40formilux.org
https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html
https://git.haproxy.org/?p=haproxy.git Patch Vendor Advisory
https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95 Patch Third Party Advisory
https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/ Exploit Mitigation Third Party Advisory
https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc4108779c50a97c79120%40%3Cdev.cloudstack.apache.org%3E
https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a%40%3Cdev.cloudstack.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/
https://www.debian.org/security/2021/dsa-4968 Third Party Advisory
https://www.mail-archive.com/haproxy%40formilux.org
https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev0:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev1:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev2:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev3:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev4:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev5:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:2.5:dev6:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-09-08 17:15

Updated : 2024-11-21 06:23


NVD link : CVE-2021-40346

Mitre link : CVE-2021-40346

CVE.ORG link : CVE-2021-40346


JSON object : View

Products Affected

haproxy

  • haproxy

debian

  • debian_linux

fedoraproject

  • fedora
CWE
CWE-190

Integer Overflow or Wraparound