{"id":"CVE-2021-28682","aliases":["BIT-envoy-2021-28682","EUVD-2021-15339","GHSA-r22g-5f3x-xjgg","RHSA-2021:1322","RHSA-2021:1324"],"status":"published","title":"Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1.13 security update","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0204,"percentile":0.81268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2021-05-20T16:15:20Z","modified":"2026-10-20T10:53:42Z","fixes":[{"ecosystem":"Bitnami","package":"envoy","fixed_in":["1.14.7","1.15.4","1.16.3","1.17.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"envoy","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.6"},{"fixed":"1.14.7"},{"introduced":"1.15.3"},{"fixed":"1.15.4"},{"introduced":"1.16.2"},{"fixed":"1.16.3"},{"introduced":"1.17.1"},{"fixed":"1.17.2"}]}]},{"source":"osv","ecosystem":"Red Hat:service_mesh:1.1::el8","package":"servicemesh-pilot-agent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.13-3.el8"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:service_mesh:1.1::el8","package":"servicemesh-pilot-discovery","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.13-3.el8"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:service_mesh:1.1::el8","package":"servicemesh-proxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.13-1.el8"}]}],"bundled":4},{"source":"osv","ecosystem":"Red Hat:service_mesh:2.0::el8","package":"servicemesh-proxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.0.3-1.el8"}]}],"bundled":3}],"products":[{"vendor":"envoyproxy","product":"envoy"}],"references":[{"url":"https://github.com/envoyproxy/envoy/releases","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://blog.envoyproxy.io","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","advisory","evidence"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg","tags":["Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28682","tags":["web","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:1322","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1919066","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1942263","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1942272","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1942280","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1322.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-25014","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-25014","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-25014","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-28682","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28682","tags":["advisory"]},{"url":"https://istio.io/latest/news/security/istio-security-2021-003/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-28683","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28683","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28683","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-29258","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-29258","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29258","tags":["advisory"]},{"url":"https://github.com/envoyproxy/envoy/blob/main/source/docs/h2_metadata.md","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2021:1324","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1324.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-28682","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","status":"published","published":"2021-05-20T16:15:20Z","modified":"2024-08-03T21:47:32.986Z","updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15339","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","status":"published","published":"2021-05-20T16:15:20Z","modified":"2024-08-03T21:47:32Z","updated_at":"2026-11-03T03:24:46.751124Z"}],"nvd":[{"id":"CVE-2021-28682","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","status":"published","published":"2021-05-20T17:15:07.68Z","modified":"2026-06-17T03:46:47.2Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-28682","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","status":"published","published":"2021-05-20T17:15:07.68Z","modified":"2026-10-20T10:53:42.053669109Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"RHSA-2021:1322","title":"Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1.13 security update","status":"published","published":"2024-09-16T05:31:16Z","modified":"2026-06-27T10:13:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RHSA-2021:1324","title":"Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.0.3 security update","status":"published","published":"2024-09-16T05:31:23Z","modified":"2026-03-18T11:31:13.653376Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"BIT-envoy-2021-28682","description":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","status":"published","published":"2024-03-06T10:59:14.669Z","modified":"2026-09-08T08:47:22.48136373Z","updated_at":"2026-11-02T15:28:29.563843Z"}]}}
