{"id":"CVE-2025-46802","aliases":["ALPINE-CVE-2025-46802","BELL-CVE-2025-46802","DEBIAN-CVE-2025-46802","EUVD-2025-28068","GHSA-rh76-vmrr-w867","OESA-2025-1579","SUSE-SU-2025:02016-1","SUSE-SU-2025:02186-1","UBUNTU-CVE-2025-46802","USN-7978-1","openSUSE-SU-2025:15164-1"],"status":"published","title":"Temporary chown() of users' TTY to mode 0666 allows PTY hijacking in screen","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00235,"percentile":0.14563,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-732"],"published":"2025-05-08T00:00:00Z","modified":"2026-09-01T20:05:52Z","fixes":[{"ecosystem":"Alpine:v3.18","package":"screen","fixed_in":["4.9.1_git20250512-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"screen","fixed_in":["4.9.1_git20250512-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"screen","fixed_in":["4.9.1_git20250512-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"screen","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"screen","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"screen","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"screen","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"screen","fixed_in":["4.9.1_git20250512-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"screen","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"screen","fixed_in":["4.9.1-3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"screen","fixed_in":["4.9.1-3"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Leap 15.6","package":"screen","fixed_in":["4.6.2-150000.5.8.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","package":"screen","fixed_in":["4.0.4-23.9.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"screen","fixed_in":["4.9.0-1ubuntu0.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"screen","fixed_in":["4.9.1-1ubuntu1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"screen","fixed_in":["4.9.1-5.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.18","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1_git20250512-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1_git20250512-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1_git20250512-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:23","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.0-r0"},{"fixed":"4.9.1_git20250512-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.0-r1"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-4","4.9.1-1","4.9.1-1+hurd.1","4.9.1-1+hurd.2","4.9.1-2","4.9.1-3","4.9.1-3.1","5.0.1-1","5.0.1-1.1","5.0.1-1.1+be","5.0.1-2","5.0.1-3","5.0.2-1"]},{"source":"osv","ecosystem":"Debian:13","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1-3"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1-3"}]}]},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-3.oe2203sp4"}]}],"bundled":3},{"source":"osv","ecosystem":"openEuler:24.03-LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-3.oe2403sp1"}]}],"bundled":3},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-3.oe2403sp1"}]}],"bundled":3},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP4","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8.0-7.oe2003sp4"}]}],"bundled":3},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP3","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-3.oe2203sp3"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Micro 5.3","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Micro 5.4","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Micro 5.5","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 15.6","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.2-150000.5.8.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.4-23.9.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.3-14ubuntu10","4.1.0~20120320gitdb59704-9","4.1.0~20120320gitdb59704-9ubuntu0.1~esm1","4.1.0~20120320gitdb59704-9ubuntu0.1~esm2","4.1.0~20120320gitdb59704-9ubuntu0.1~esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-2","4.3.1-2build1","4.3.1-2ubuntu0.1","4.3.1-2ubuntu0.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.1-1","4.6.2-1","4.6.2-1ubuntu1","4.6.2-1ubuntu1.1","4.6.2-1ubuntu1.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-3build1","4.7.0-1","4.8.0-1","4.8.0-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-1ubuntu0.1"}]}],"versions":["4.8.0-6","4.8.0-6build1","4.8.0-7","4.9.0-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1-1ubuntu1"}]}],"versions":["4.9.0-4","4.9.1-1","4.9.1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-1ubuntu0.1"}]}],"versions":["4.8.0-6","4.8.0-6build1","4.8.0-7","4.9.0-1"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1-1ubuntu1"}]}],"versions":["4.9.0-4","4.9.1-1","4.9.1-1build1"],"bundled":4},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"screen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.1-5.1"}]}]}],"products":[{"vendor":"suse","product":"suse linux enterprise desktop 15 sp6"},{"vendor":"suse","product":"suse linux enterprise high performance computing 15 sp6"},{"vendor":"suse","product":"suse linux enterprise micro 5.3"},{"vendor":"suse","product":"suse linux enterprise micro 5.4"},{"vendor":"suse","product":"suse linux enterprise micro 5.5"},{"vendor":"suse","product":"suse linux enterprise module for basesystem 15 sp6"},{"vendor":"suse","product":"suse linux enterprise server 15 sp6"},{"vendor":"suse","product":"suse linux enterprise server for sap applications 15 sp6"}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-46802","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2025/05/12/1","tags":["exploit","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46802","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rh76-vmrr-w867"},{"url":"https://security.alpinelinux.org/vuln/CVE-2025-46802","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2025-46802","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-46802","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1579","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46804","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46805","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202502016-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1242269","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2025-46802","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202502186-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-46802","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-46802","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7978-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-24626","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2025-46804","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2025-46805","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/EHAVZBGPF26QCKDE25CJVWLHNTDLGTXQ/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-46802","title":"Temporary chown() of users' TTY to mode 0666 allows PTY hijacking in screen","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T15:10:38.46Z","modified":"2025-05-27T14:11:53.805Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:32:36.385228Z"}],"euvd":[{"id":"EUVD-2025-28068","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T15:10:38Z","modified":"2025-05-27T14:11:53Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T20:32:38.348652Z"}],"ghsa":[{"id":"GHSA-rh76-vmrr-w867","title":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the...","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T18:30:25Z","modified":"2025-05-27T15:31:26Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T15:02:26.855176Z"}],"nvd":[{"id":"CVE-2025-46802","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T16:15:20.557Z","modified":"2026-06-17T09:26:57.4Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:11:09.562272Z"}],"osv":[{"id":"ALPINE-CVE-2025-46802","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T16:15:20.557Z","modified":"2026-08-27T22:18:02.904146501Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:27:50.269992Z"},{"id":"BELL-CVE-2025-46802","status":"published","published":"2025-05-14T05:58:45.40252Z","modified":"2026-01-26T09:40:27.860329Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:22.495824Z"},{"id":"DEBIAN-CVE-2025-46802","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T16:15:20.557Z","modified":"2026-09-01T20:05:52.972184887Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:47.378563Z"},{"id":"OESA-2025-1579","title":"screen security update","description":"Screen is a full-screen window manager that multiplexes\na physical terminal between several processes,typically\ninteractive shells. \r\n\r\nSecurity Fix(es):\n\nFor a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.(CVE-2025-46802)\n\nA minor information leak when running Screen with setuid-root privileges allows unprivileged users to deduce information about a path that would otherwise not be available.\n\n\nAffected are older Screen versions, as well as version 5.0.0.(CVE-2025-46804)\n\nScreen version 5.0.0 and older version 4 releases have  a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.(CVE-2025-46805)","status":"published","published":"2025-05-30T11:08:40Z","modified":"2026-08-18T01:17:59.774742916Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:42.714349Z"},{"id":"UBUNTU-CVE-2025-46802","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-08T00:00:00Z","modified":"2026-02-04T03:17:11.438164Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:50.31802Z"},{"id":"CVE-2025-46802","description":"For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.","status":"published","published":"2025-05-26T16:15:20Z","modified":"2026-04-10T05:28:32.682378Z","updated_at":"2026-11-02T15:44:49.707645Z"},{"id":"openSUSE-SU-2025:15164-1","title":"screen-4.9.1-5.1 on GA media","description":"These are all security issues fixed in the screen-4.9.1-5.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-05-26T00:00:00Z","modified":"2026-03-23T04:53:25.725778Z","updated_at":"2026-11-02T16:58:37.399567Z"},{"id":"SUSE-SU-2025:02016-1","title":"Security update for screen","description":"This update for screen fixes the following issues:\n\nSecurity issues fixed:\n    \n- CVE-2025-46802: temporary `chmod` of a user's TTY to mode 0666 when attempting to attach to a multi-user session\n  allows for TTY hijacking (bsc#1242269).\n\nOther issues fixed:\n\n- Use TTY file descriptor passing after a suspend (`MSG_CONT`).\n- Fix resume after suspend in multi-user mode.\n","status":"published","published":"2025-06-19T07:14:39Z","modified":"2026-02-04T04:36:10.863903Z","updated_at":"2026-11-02T15:53:56.647031Z"},{"id":"SUSE-SU-2025:02186-1","title":"Security update for screen","description":"This update for screen fixes the following issues:\n\nSecurity issues fixed:\n    \n- CVE-2025-46802: temporary `chmod` of a user's TTY to mode 0666 when attempting to attach to a multi-user session\n  allows for TTY hijacking (bsc#1242269).\n\nOther issues fixed:\n\n- Use TTY file descriptor passing after a suspend (`MSG_CONT`).\n","status":"published","published":"2025-07-01T11:48:02Z","modified":"2026-03-23T04:46:28.343352Z","updated_at":"2026-11-02T15:53:56.647031Z"},{"id":"USN-7978-1","title":"screen vulnerabilities","description":"It was discovered that GNU Screen incorrectly handled signals when setuid\nor setgid privileges were being used, which is not the default in Ubuntu.\nA local attacker could use this issue to send privileged signals, possibly\nleading to a denial of service. This issue only affected Ubuntu 22.04 LTS.\n(CVE-2023-24626)\n\nIt was discovered that GNU Screen incorrectly handled PTY permissions. A\nlocal attacker could possibly use this issue to connect to an unauthorized\nscreen session. (CVE-2025-46802)\n\nIt was discovered that GNU Screen incorrectly handled file access when\nsetuid privileges were being used, which is not the default in Ubuntu. A\nlocal attacker could use this issue to deduce information about certain\nfile paths. (CVE-2025-46804)\n\nIt was discovered that GNU Screen incorrectly handled signals when setuid\nprivileges were being used, which is not the default in Ubuntu. A local\nattacker could use this issue to send privileged signals, possibly leading\nto a denial of service. (CVE-2025-46805)","status":"published","published":"2026-01-26T18:47:16Z","modified":"2026-04-27T18:34:31.604583Z","updated_at":"2026-11-02T16:58:22.951676Z"}]}}