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CVE-2019-18277

Status Candidate

Overview

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).

Related Files

Red Hat Security Advisory 2020-2265-01
Posted May 26, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2265-01 - HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Issues addressed include a HTTP request smuggling vulnerability.

tags | advisory, web, tcp
systems | linux, redhat
advisories | CVE-2019-18277, CVE-2019-19330
SHA-256 | 0c0904de44986bd12f1e63e56e6c3667b84845a080c52245dc69f3aecca57230
Red Hat Security Advisory 2020-1936-01
Posted May 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1936-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include HTTP request smuggling and out of bounds write vulnerabilities.

tags | advisory, web, vulnerability
systems | linux, redhat
advisories | CVE-2019-18277, CVE-2019-19330, CVE-2020-11100
SHA-256 | fec2b23d766320c1d0b7efd5dd4b407e4b9b62bf6a60ee9745bb96b892b789c1
Red Hat Security Advisory 2020-1725-01
Posted Apr 28, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1725-01 - The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Issues addressed include a HTTP request smuggling vulnerability.

tags | advisory, web, tcp
systems | linux, redhat
advisories | CVE-2019-18277, CVE-2019-19330
SHA-256 | 70440f69de06b5af489ae2f8c8489291f418f4e9f8e38d2401271421d54881f2
Red Hat Security Advisory 2020-1287-01
Posted Apr 8, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1287-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include an out of bounds write vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2019-18277, CVE-2019-19330, CVE-2020-11100
SHA-256 | be3a633bb19d0706ccdf2545521604cb2211df4bfc058b853a01a677628a2b4e
Ubuntu Security Notice USN-4174-1
Posted Nov 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4174-1 - It was discovered that HAproxy incorrectly handled certain HTTP requests. An attacker could possibly use this issue to a privilege escalation.

tags | advisory, web
systems | linux, ubuntu
advisories | CVE-2019-18277
SHA-256 | 4cefaa55cc8320976b4a98b63684739e029b2b7a4a59edd20899b3b3f7d77df1
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