{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-24626", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-02T11:03:19.170Z", "dateReserved": "2023-01-30T00:00:00", "datePublished": "2023-04-08T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-04-08T00:00:00"}, "descriptions": [{"lang": "en", "value": "socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://savannah.gnu.org/bugs/?63195"}, {"url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7"}, {"url": "https://www.exploit-db.com/exploits/51252"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T11:03:19.170Z"}, "title": "CVE Program Container", "references": [{"url": "https://savannah.gnu.org/bugs/?63195", "tags": ["x_transferred"]}, {"url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7", "tags": ["x_transferred"]}, {"url": "https://www.exploit-db.com/exploits/51252", "tags": ["x_transferred"]}]}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*", "matchCriteriaId": "C1DD0174-2A76-482F-964D-0DD75126F9E8", "versionEndIncluding": "4.9.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process."}], "id": "CVE-2023-24626", "lastModified": "2024-11-21T07:48:15.523", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-04-08T05:15:07.063", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Patch"], "url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7"}, {"source": "cve@mitre.org", "tags": ["Permissions Required"], "url": "https://savannah.gnu.org/bugs/?63195"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/51252"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "https://savannah.gnu.org/bugs/?63195"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/51252"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "screen: allows sending SIGHUP to arbitrary PIDs", "id": "2185517", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2185517"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-862", "details": ["socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process.", "A flaw was found in screen. This flaw allows local users to send a SIGHUP signal to any PID due to a missing signal sending permission check, potentially resulting in a denial of service or disruption of the target process."], "name": "CVE-2023-24626", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "screen", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "screen", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2023-04-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-24626\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-24626"], "statement": "The screen binary as shipped with Red Hat Enterprise Linux is installed with the set-group-ID mode bit set. However, the binary's group is set to screen and not root, limiting the security impact of this issue.\nThe screen package is not shipped in Red Hat Enterprise Linux 8 and 9. Therefore, these versions of RHEL are not affected by this flaw and are not listed in the Affected Packages list below.", "threat_severity": "Moderate"}