RHSA-2023:6084HighCVSS 7.5

Red Hat Security Advisory: RHACS 3.74 enhancement and security update

Published
October 24, 2023
Last Modified
September 22, 2026

🔗 CVE IDs covered (2)

CVE-2023-39325 →CVE-2023-44487 →

📋 Description

CVE-2023-39325 — golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487) CVE-2023-44487 — HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)

🎯 Affected products34

  • RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-central-db-rhel8@sha256:4953938e00bf4114fa18e0520ccf20611686da2372615187e5c4f2fdfbb01e06_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-central-db-rhel8@sha256:c4915dcdfd96742aa5ba9ca38d0de9938ce9c85f6fffa867c35427829ee7462f_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-central-db-rhel8@sha256:f8fa778d169160543339202f870232b6b00a1d01347f4041565cae9acc910ea9_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-rhel8@sha256:0ae622d315c3f3b23d76b7bc864c8b3d45d53db76a1fcc46d77be0c126bb93ea_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-rhel8@sha256:623ece01f5d7af6844848879985ca0a9a50473cf3e3bb6f4923280948d9ff896_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-rhel8@sha256:6246642e8ac76535613ae5758a0cbc1e408440de2ea2f8cc208c96d7266aac22_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-slim-rhel8@sha256:8c32a894305bb7fc0ac7ed37872a8dbb09f50c387bd7eb9c955c6cd11c9cf4fe_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-slim-rhel8@sha256:927d84e4c8b52de401106d5aa10605eee94ce911a9d8e81e0c41d3b8beb7c63a_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-collector-slim-rhel8@sha256:e5bba2853add1a8dee9cd34a542b4baf82a50091a917c83b74ade4298528bd3e_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-main-rhel8@sha256:0a7f042c6158dbc550e5f32ecbf5829ed925d2c9fdf30c1705ff4c3ce4bce077_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-main-rhel8@sha256:729e49fb7cfe2bd21541b1e82ccbb77197285aa90486b0c1685379484a956dd9_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-main-rhel8@sha256:95265ddc882b2548ed35ae247b283d0f25dce30a3904717396fe17c701d4eb81_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-operator-bundle@sha256:42a9acbb0b0a6db326b51044c7e9c99f7a89b5861ac706eab1595b34146b77c4_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-operator-bundle@sha256:55bea5ed24d5fda12c5a6ac34a908da2c471937fb2c934df1188b806ab56d96e_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-operator-bundle@sha256:b8aa66884d5fdfc0383d7a6fdf34418b2c55a00f441fa41a374ca405d7b3f068_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-rhel8-operator@sha256:2adb884147e473b17086eb7cd5462fdd4ab18e6bdc81cd81940001be4a5b67c7_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-rhel8-operator@sha256:373275fba75136a5735ce6a98b94f6b44fc6122d278fdc347f8a8c4740ebcf33_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-rhel8-operator@sha256:8dd2654d1e078941de8b8cbd1d9aa3348ff8893c35edb5c513116129eae74207_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-roxctl-rhel8@sha256:060f753e5e57904fd0b3cea1f47f5a45a300ba40c3de448dce04fc4857200127_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-roxctl-rhel8@sha256:ad2b63ce031af12d8c31eb40652e324ea9cc5891624c4e1683c00d2948825c0f_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-roxctl-rhel8@sha256:ce71c4526b7cd5d2bebf771b38e6ac61a12c5dabe3d0f9963e27245944f9e6db_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-rhel8@sha256:83e47a2dc1741bb81aa566f2b310ef0bd47a43792bcca823cdb8ee293c3c3e82_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-rhel8@sha256:ad7c57277851a741e0bc2536f564e86b59be8377366f4b1b7ea79aaa662dc6fa_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-rhel8@sha256:b565441374903dafa3ee00f015cabdf3c16b282d143fb1c9c91dcd126697d71d_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-slim-rhel8@sha256:172711e18b4289efdda02b662beeaa6941f7b41a533410871c9505b76f6a4481_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-slim-rhel8@sha256:7c15e7d6064a4f45e6aabb8ff309bd0244ff789ee392815d85f2321a90917929_ppc64le as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-db-slim-rhel8@sha256:b0d4ba54ba1e9bf8afe640c9c5b2c5eed807c22423a75e39702c033e41c93229_s390x as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-rhel8@sha256:2468f097410bad3de5799b9d46801a04b4580a53d05498dcae37edf73c157826_amd64 as a component of RHACS 3.74 for RHEL 8
  • advanced-cluster-security/rhacs-scanner-rhel8@sha256:8e8acf87581468fd98a97fe28438ea0146b3d8c2b12a322f5c63bf11b4588d81_s390x as a component of RHACS 3.74 for RHEL 8
  • +4 more not shown

✅ Remediation

If you are using an earlier version of RHACS 3.74, you are advised to upgrade to patch release 3.74.7. Workaround: The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2. Workaround: Users are strongly urged to update their software as soon as fixes are available. There are several mitigation approaches for this flaw. 1. If circumstances permit, users may disable http2 endpoints to circumvent the flaw altogether until a fix is available. 2. IP-based blocking or flood protection and rate control tools may be used at network endpoints to filter incoming traffic. 3. Several package specific mitigations are also available. a. nginx: https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/ b. netty: https://github.com/netty/netty/security/advisories/GHSA-xpw8-rcwv-8f8p c. haproxy: https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487 d. nghttp2: https://github.com/nghttp2/nghttp2/security/advisories/GHSA-vx74-f528-fxqg e. golang: The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2.

🔗 References (7)