CVE-2023-44487

Description

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

CVSS breakdown

References

• MISChttps://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73
• MISChttps://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/
• MISChttps://aws.amazon.com/security/security-bulletins/AWS-2023-011/
• MISChttps://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack
• MISChttps://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/
• MISChttps://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/
• MISChttps://news.ycombinator.com/item?id=37831062
• MISChttps://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/
• MISChttps://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack
• PATCHhttps://github.com/envoyproxy/envoy/pull/30055
• MISChttps://github.com/haproxy/haproxy/issues/2312
• MISChttps://github.com/eclipse/jetty.project/issues/10679
• MISChttps://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764
• PATCHhttps://github.com/nghttp2/nghttp2/pull/1961
• PATCHhttps://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61
• MISChttps://github.com/alibaba/tengine/issues/1872
• MISChttps://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2
• MISChttps://news.ycombinator.com/item?id=37830987
• MISChttps://news.ycombinator.com/item?id=37830998
• MISChttps://github.com/caddyserver/caddy/issues/5877
• MISChttps://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/
• MISChttps://github.com/bcdannyboy/CVE-2023-44487
• PATCHhttps://github.com/grpc/grpc-go/pull/6703
• MISChttps://github.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244
• PATCHhttps://github.com/nghttp2/nghttp2/releases/tag/v1.57.0
• MAILING_LISThttps://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html
• MISChttps://my.f5.com/manage/s/article/K000137106
• VENDOR_ADVISORYhttps://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/
• MISChttps://bugzilla.proxmox.com/show_bug.cgi?id=4988
• MISChttps://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/10/7
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/10/6
• MISChttps://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected
• PATCHhttps://github.com/microsoft/CBL-Mariner/pull/6381
• MISChttps://groups.google.com/g/golang-announce/c/iNNxDTCjZvo
• PATCHhttps://github.com/facebook/proxygen/pull/466
• MISChttps://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088
• MISChttps://github.com/micrictor/http2-rst-stream
• MISChttps://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve
• MISChttps://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/
• VENDOR_ADVISORYhttps://github.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf
• PATCHhttps://github.com/h2o/h2o/pull/3291
• PATCHhttps://github.com/nodejs/node/pull/50121
• MISChttps://github.com/dotnet/announcements/issues/277
• MISChttps://github.com/golang/go/issues/63417
• VENDOR_ADVISORYhttps://github.com/advisories/GHSA-vx74-f528-fxqg
• PATCHhttps://github.com/apache/trafficserver/pull/10564
• VENDOR_ADVISORYhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487
• MISChttps://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14
• MAILING_LISThttps://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q
• MAILING_LISThttps://www.openwall.com/lists/oss-security/2023/10/10/6
• MISChttps://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487
• MISChttps://github.com/opensearch-project/data-prepper/issues/3474
• PATCHhttps://github.com/kubernetes/kubernetes/pull/121120
• MISChttps://github.com/oqtane/oqtane.framework/discussions/3367
• VENDOR_ADVISORYhttps://github.com/advisories/GHSA-xpw8-rcwv-8f8p
• MISChttps://netty.io/news/2023/10/10/4-1-100-Final.html
• MISChttps://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487
• MISChttps://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/
• MISChttps://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack
• MISChttps://news.ycombinator.com/item?id=37837043
• MISChttps://github.com/kazu-yamamoto/http2/issues/93
• MISChttps://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html
• PATCHhttps://github.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1
• MISChttps://github.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5522
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5521
• VENDOR_ADVISORYhttps://access.redhat.com/security/cve/cve-2023-44487
• MISChttps://github.com/ninenines/cowboy/issues/1615
• MISChttps://github.com/varnishcache/varnish-cache/issues/3996
• MISChttps://github.com/tempesta-tech/tempesta/issues/1986
• MISChttps://blog.vespa.ai/cve-2023-44487/
• MISChttps://github.com/etcd-io/etcd/issues/16740
• MISChttps://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event
• MISChttps://istio.io/latest/news/security/istio-security-2023-004/
• MISChttps://github.com/junkurihara/rust-rpxy/issues/97
• MISChttps://bugzilla.suse.com/show_bug.cgi?id=1216123
• MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2242803
• VENDOR_ADVISORYhttps://ubuntu.com/security/CVE-2023-44487
• MISChttps://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125
• VENDOR_ADVISORYhttps://github.com/advisories/GHSA-qppj-fm5r-hxr3
• PATCHhttps://github.com/apache/httpd-site/pull/10
• PATCHhttps://github.com/projectcontour/contour/pull/5826
• PATCHhttps://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632
• PATCHhttps://github.com/line/armeria/pull/5232
• MISChttps://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/
• MISChttps://security.paloaltonetworks.com/CVE-2023-44487
• MISChttps://github.com/akka/akka-http/issues/4323
• MISChttps://github.com/openresty/openresty/issues/930
• MISChttps://github.com/apache/apisix/issues/10320
• MISChttps://github.com/Azure/AKS/issues/3947
• MISChttps://github.com/Kong/kong/discussions/11741
• MISChttps://github.com/arkrwn/PoC/tree/main/CVE-2023-44487
• MISChttps://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/
• PATCHhttps://github.com/caddyserver/caddy/releases/tag/v2.7.5
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/10/msg00020.html
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/13/4
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/13/9
• MISChttps://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/
• MAILING_LISThttps://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/
• MISChttps://linkerd.io/2023/10/12/linkerd-cve-2023-44487/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/10/msg00023.html
• MISChttps://security.netapp.com/advisory/ntap-20231016-0001/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/10/msg00024.html
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/18/4
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/18/8
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/19/6
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/10/20/8
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/10/msg00045.html
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5540
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/10/msg00047.html
• MISChttps://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/11/msg00001.html
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5549
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5558
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/11/msg00012.html
• MISChttps://security.gentoo.org/glsa/202311-09
• VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5570
• MISChttps://security.netapp.com/advisory/ntap-20240426-0007/
• MISChttps://security.netapp.com/advisory/ntap-20240621-0006/
• MISChttps://security.netapp.com/advisory/ntap-20240621-0007/
• PATCHhttps://github.com/grpc/grpc/releases/tag/v1.59.2
• VENDOR_ADVISORYhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http2-reset-d8Kf32vZ