{"cve":"CVE-2002-0638","nvd":{"published":"2002-08-12T04:00:00.000","modified":"2026-06-16T21:57:50.240","status":"Modified","description":"setpwnam.c in the util-linux package, as included in Red Hat Linux 7.3 and earlier, and other operating systems, does not properly lock a temporary file when modifying /etc/passwd, which may allow local users to gain privileges via a complex race condition that uses an open file descriptor in utility programs such as chfn and chsh.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-043.0.txt","http://archives.neohapsis.com/archives/bugtraq/2002-07/0357.html","http://archives.neohapsis.com/archives/bugtraq/2002-07/0396.html","http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000523","http://marc.info/?l=bugtraq&m=102795787713996&w=2"],"products":["hp:secure_os","mandrakesoft:mandrake_linux","mandrakesoft:mandrake_linux_corporate_server","mandrakesoft:mandrake_single_network_firewall","redhat:linux"],"source":"nvd","synced_at":"2026-10-19T19:34:38.930894741+00:00"},"epss":{"cve":"CVE-2002-0638","score":0.00529,"percentile":0.44772,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}