{"id":"CVE-2021-3531","aliases":["ALPINE-CVE-2021-3531","DEBIAN-CVE-2021-3531","DLA-3629-1","EUVD-2021-26847","GHSA-wc6g-g56r-jp2f","RHSA-2022:1174","SUSE-SU-2021:1834-1","SUSE-SU-2021:1835-1","UBUNTU-CVE-2021-3531","USN-4998-1","USN-5128-1","openSUSE-SU-2021:0833-1","openSUSE-SU-2021:1834-1","openSUSE-SU-2024:10676-1"],"status":"published","title":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a...","description":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. 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se.com/security/cve/CVE-2021-3524","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3531","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211835-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-3531","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2021/05/14/5","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4998-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-5128-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-25678","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-27781","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-27839","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3509","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3524","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-20288","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/SVZR2UDWM64LU6NNFZNHXJWWFA6W2ZDV/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/OD76XLAQUNHRCX53LARPKA7IODR5MCPO/","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-16818","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10861","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1128","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-16889","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-10222","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-3821","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-10736","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-1759","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-1760","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20288","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-3531","description":"A 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The greatest threat to the system is of availability.","status":"published","published":"2021-05-18T12:15:08.08Z","modified":"2026-06-17T04:05:18.197Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","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-20","CWE-617"],"updated_at":"2026-11-02T14:06:53.343329Z"}],"osv":[{"id":"ALPINE-CVE-2021-3531","description":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.","status":"published","published":"2021-05-18T12:15:08.08Z","modified":"2026-11-03T06:32:40.699059637Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T07:17:02.90744Z"},{"id":"CVE-2021-3531","description":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.","status":"published","published":"2021-05-18T12:15:08.08Z","modified":"2026-10-24T10:30:30.377947961Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"DEBIAN-CVE-2021-3531","description":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.","status":"published","published":"2021-05-18T12:15:08.08Z","modified":"2026-10-23T18:03:14.124390403Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"RHSA-2022:1174","title":"Red Hat Security Advisory: Red Hat Ceph Storage 5.1 Security, Enhancement, and Bug Fix update","status":"published","published":"2024-09-16T06:29:55Z","modified":"2026-06-26T12:22:29.353935658Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"UBUNTU-CVE-2021-3531","description":"A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.","status":"published","published":"2021-05-18T12:15:00Z","modified":"2026-04-22T12:55:38.057039Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"DLA-3629-1","title":"ceph - security update","status":"published","published":"2023-10-23T00:00:00Z","modified":"2026-03-09T01:20:33.777283Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"openSUSE-SU-2021:0833-1","title":"Security update for ceph","description":"This update for ceph fixes the following issues:\n\n- Update to 15.2.12-83-g528da226523:\n- (CVE-2021-3509) fix cookie injection issue (bsc#1186021)\n- (CVE-2021-3531) RGWSwiftWebsiteHandler::is_web_dir checks empty subdir_name (bsc#1186020)\n- (CVE-2021-3524) sanitize \\r in s3 CORSConfiguration’s ExposeHeader (bsc#1185619)\n\nThis update was imported from the SUSE:SLE-15-SP2:Update update project.","status":"published","published":"2021-06-03T17:33:32Z","modified":"2026-02-04T04:11:47.700659Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"openSUSE-SU-2021:1834-1","title":"Security update for ceph","description":"This update for ceph fixes the following issues:\n\n- Update to 15.2.12-83-g528da226523:\n- (CVE-2021-3509) fix cookie injection issue (bsc#1186021)\n- (CVE-2021-3531) RGWSwiftWebsiteHandler::is_web_dir checks empty subdir_name (bsc#1186020)\n- (CVE-2021-3524) sanitize \\r in s3 CORSConfiguration’s ExposeHeader (bsc#1185619)\n","status":"published","published":"2021-07-10T19:13:08Z","modified":"2026-02-04T02:41:20.731172Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"openSUSE-SU-2024:10676-1","title":"ceph-16.2.6.45+g8fda9838398-1.1 on GA media","description":"These are all security issues fixed in the ceph-16.2.6.45+g8fda9838398-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:26:40.49272Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"SUSE-SU-2021:1834-1","title":"Security update for ceph","description":"This update for ceph fixes the following issues:\n\n- Update to 15.2.12-83-g528da226523:\n- (CVE-2021-3509) fix cookie injection issue (bsc#1186021)\n- (CVE-2021-3531) RGWSwiftWebsiteHandler::is_web_dir checks empty subdir_name (bsc#1186020)\n- (CVE-2021-3524) sanitize \\r in s3 CORSConfiguration’s ExposeHeader (bsc#1185619)\n","status":"published","published":"2021-06-02T13:37:14Z","modified":"2026-02-04T02:24:46.565733Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"id":"SUSE-SU-2021:1835-1","title":"Security update for ceph","description":"This update for ceph fixes the following issues:\n\n- Update to 15.2.12-83-g528da226523:\n- (CVE-2021-3509) fix cookie injection issue (bsc#1186021)\n- (CVE-2021-3531) RGWSwiftWebsiteHandler::is_web_dir checks empty subdir_name (bsc#1186020)\n- (CVE-2021-3524) sanitize \\r in s3 CORSConfiguration’s ExposeHeader (bsc#1185619)\n","status":"published","published":"2021-06-02T13:38:19Z","modified":"2025-05-02T04:10:45.003297Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"id":"USN-4998-1","title":"ceph vulnerabilities","description":"It was discovered that in some situations Ceph logged passwords from the\nmgr module in clear text. An attacker could use this to expose sensitive\ninformation. (CVE-2020-25678)\n\nGoutham Pacha Ravi, Jahson Babel, and John Garbutt discovered that user\ncredentials in Ceph could be manipulated in certain environments. An\nattacker could use this to gain unintended access. (CVE-2020-27781)\n\nIt was discovered that the Ceph dashboard was susceptible to a cross-site\nscripting attack. An attacker could use this to expose sensitive\ninformation or gain unintended access. (CVE-2020-27839)\n\nIt was discovered that Ceph contained an authentication flaw, leading to\nkey reuse. An attacker could use this to cause a denial of service or\npossibly impersonate another user. (CVE-2021-20288)\n\nSergey Bobrov discovered that the Ceph dashboard was susceptible to a\ncross-site scripting attack. An attacker could use this to expose sensitive\ninformation or gain unintended access. (CVE-2021-3509)\n\nSergey Bobrov discovered that Ceph's RadosGW (Ceph Object Gateway) allowed\nthe injection of HTTP headers in responses to CORS requests. An attacker\ncould use this to violate system integrity. (CVE-2021-3524)\n\nIt was discovered that Ceph's RadosGW (Ceph Object Gateway) did not\nproperly handle GET requests for swift URLs in some situations, leading to\nan application crash. An attacker could use this to cause a denial of\nservice. (CVE-2021-3531)\n","status":"published","published":"2021-06-25T02:38:50Z","modified":"2026-04-22T10:15:26.237909Z","updated_at":"2026-11-02T16:58:15.683829Z"},{"id":"USN-5128-1","title":"ceph vulnerabilities","description":"Goutham Pacha Ravi, Jahson Babel, and John Garbutt discovered that user\ncredentials in Ceph could be manipulated in certain environments. An\nattacker could use this to gain unintended access to resources. This issue\nonly affected Ubuntu 18.04 LTS. (CVE-2020-27781)\n\nIt was discovered that Ceph contained an authentication flaw, leading to\nkey reuse. An attacker could use this to cause a denial of service or\npossibly impersonate another user. This issue only affected Ubuntu 21.04.\n(CVE-2021-20288)\n\nSergey Bobrov discovered that the Ceph dashboard was susceptible to a\ncross-site scripting attack. An attacker could use this to expose sensitive\ninformation or gain unintended access. This issue only affected Ubuntu\n21.04. (CVE-2021-3509)\n\nSergey Bobrov discovered that Ceph's RadosGW (Ceph Object Gateway) allowed\nthe injection of HTTP headers in responses to CORS requests. An attacker\ncould use this to violate system integrity. (CVE-2021-3524)\n\nIt was discovered that Ceph's RadosGW (Ceph Object Gateway) did not\nproperly handle GET requests for swift URLs in some situations, leading to\nan application crash. An attacker could use this to cause a denial of\nservice. (CVE-2021-3531)\n","status":"published","published":"2021-11-01T22:40:54Z","modified":"2026-04-22T10:18:48.950597Z","updated_at":"2026-11-02T16:58:15.683829Z"}]}}