{"id":"CVE-2025-23395","state":"PUBLISHED","title":"Local root exploit via `logfile_reopen()` in screen 5.0.0 with setuid-root bit set","description":"Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user's (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges","publishedAt":"2025-05-26T15:18:46.694Z","updatedAt":"2025-05-27T14:10:29.258Z","severity":{"score":7.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"suse"},"assigner":"suse","products":["screen"],"affected":[{"packageName":"screen","defaultStatus":"unaffected","versions":[{"version":"5.0","status":"affected","lessThanOrEqual":"5.0.0","versionType":"semver"}],"collectionURL":"https://git.savannah.gnu.org/cgit/screen.git"}],"references":["https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-23395","https://www.openwall.com/lists/oss-security/2025/05/12/1"],"weaknesses":["CWE-271"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/23xxx/CVE-2025-23395.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-23395","state":"PUBLISHED","datePublished":"2025-05-26T15:18:46.694Z","dateUpdated":"2025-05-27T14:10:29.258Z","assignerShortName":"suse","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateReserved":"2025-01-15T12:39:03.324Z"},"containers":{"cna":{"title":"Local root exploit via `logfile_reopen()` in screen 5.0.0 with setuid-root bit set","descriptions":[{"lang":"en","value":"Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user's (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges"}],"affected":[{"packageName":"screen","defaultStatus":"unaffected","versions":[{"version":"5.0","status":"affected","lessThanOrEqual":"5.0.0","versionType":"semver"}],"collectionURL":"https://git.savannah.gnu.org/cgit/screen.git"}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-23395"},{"url":"https://www.openwall.com/lists/oss-security/2025/05/12/1"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-271","description":"CWE-271: Privilege Dropping / Lowering Errors","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"suse","orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateUpdated":"2025-05-26T15:18:46.694Z"},"credits":[{"lang":"en","type":"finder","value":"Matthias Gerstner, SUSE"}],"datePublic":"2025-05-12T15:24:00.000Z","source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://www.openwall.com/lists/oss-security/2025/05/12/1","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-27T14:10:26.175851Z","id":"CVE-2025-23395","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-27T14:10:29.258Z"}}]}}}