CVE-2022-0563

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The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4."}, {"lang": "es", "value": "Se ha encontrado un fallo en las utilidades chfn y chsh del kernel de Linux cuando son compiladas con soporte para Readline. La biblioteca Readline usa una variable de entorno \"INPUTRC\" para conseguir una ruta al archivo de configuraci\u00f3n de la biblioteca. Cuando la biblioteca no puede analizar el archivo especificado, imprime un mensaje de error que contiene datos del archivo. Este fallo permite a un usuario no privilegiado leer archivos propiedad de root, conllevando potencialmente a una escalada de privilegios. 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{"acknowledgement": "Upstream acknowledges Rory Mackie (Trail of Bits) as the original reporter.", "bugzilla": {"description": "util-linux: partial disclosure of arbitrary files in chfn and chsh when compiled with libreadline", "id": "2053151", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2053151"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-209", "details": ["A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4.", "A flaw was found in the Linux kernel\u2019s util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation."], "name": "CVE-2022-0563", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "util-linux-ng", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "util-linux", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "util-linux", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "util-linux", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-02-14T11:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-0563\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-0563\nhttps://blog.trailofbits.com/2023/02/16/suid-logic-bug-linux-readline/\nhttps://lore.kernel.org/util-linux/20220214110609.msiwlm457ngoic6w@ws.net.home/T/#u"], "statement": "Red Hat Enterprise Linux 8 is not affected by this flaw as chfn and chsh are not compiled with readline support (libreadline is not linked).", "threat_severity": "Moderate"}

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