{"id":"CVE-2020-28049","state":"PUBLISHED","title":"An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection t","description":"An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.","publishedAt":"2020-11-04T00:00:00.000Z","updatedAt":"2024-10-15T18:10:25.839Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/sddm/sddm/releases","https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-28049","https://github.com/sddm/sddm/blob/v0.19.0/ChangeLog","https://www.debian.org/security/2020/dsa-4783","https://lists.debian.org/debian-lts-announce/2020/11/msg00009.html","http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00031.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GT3EX5NSQJJAKY63ENSMEDX6NYZLYY3S/","https://security.gentoo.org/glsa/202402-02"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T19:47:13.795Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/28xxx/CVE-2020-28049.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-28049","state":"PUBLISHED","datePublished":"2020-11-04T00:00:00.000Z","dateUpdated":"2024-10-15T18:10:25.839Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-11-02T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/sddm/sddm/releases"},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-28049"},{"url":"https://github.com/sddm/sddm/blob/v0.19.0/ChangeLog"},{"url":"https://www.debian.org/security/2020/dsa-4783","name":"DSA-4783","tags":["vendor-advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00009.html","name":"[debian-lts-announce] 20201106 [SECURITY] [DLA 2436-1] sddm security update","tags":["mailing-list"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00031.html","name":"openSUSE-SU-2020:1870","tags":["vendor-advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GT3EX5NSQJJAKY63ENSMEDX6NYZLYY3S/","name":"FEDORA-2021-7066b95c99","tags":["vendor-advisory"]},{"url":"https://security.gentoo.org/glsa/202402-02","name":"GLSA-202402-02","tags":["vendor-advisory"]}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2024-02-03T07:06:30.199Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/sddm/sddm/releases","tags":["x_transferred"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-28049","tags":["x_transferred"]},{"url":"https://github.com/sddm/sddm/blob/v0.19.0/ChangeLog","tags":["x_transferred"]},{"url":"https://www.debian.org/security/2020/dsa-4783","name":"DSA-4783","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00009.html","name":"[debian-lts-announce] 20201106 [SECURITY] [DLA 2436-1] sddm security update","tags":["mailing-list","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00031.html","name":"openSUSE-SU-2020:1870","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GT3EX5NSQJJAKY63ENSMEDX6NYZLYY3S/","name":"FEDORA-2021-7066b95c99","tags":["vendor-advisory","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202402-02","name":"GLSA-202402-02","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T16:33:56.915Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.3,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-10-15T17:16:10.736062Z","id":"CVE-2020-28049","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","type":"CWE","lang":"en","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-15T18:10:25.839Z"}}]}}}