CVE ID:	CAN-2002-0638
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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2002-0638 BugTraq ID: 5344 http://www.securityfocus.com/bid/5344 Bugtraq: 20020729 RAZOR advisory: Linux util-linux chfn local root vulnerability (Google Search) http://marc.info/?l=bugtraq&m=102795787713996&w=2 Bugtraq: 20020730 TSLSA-2002-0064 - util-linux (Google Search) http://archives.neohapsis.com/archives/bugtraq/2002-07/0396.html Caldera Security Advisory: CSSA-2002-043.0 ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-043.0.txt CERT/CC vulnerability note: VU#405955 http://www.kb.cert.org/vuls/id/405955 Conectiva Linux advisory: CLA-2002:523 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000523 HPdes Security Advisory: HPSBTL0207-054 http://online.securityfocus.com/advisories/4320 http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-047.php http://www.osvdb.org/5164 RedHat Security Advisories: RHSA-2002:132 http://rhn.redhat.com/errata/RHSA-2002-132.html RedHat Security Advisories: RHSA-2002:137 http://www.redhat.com/support/errata/RHSA-2002-137.html http://archives.neohapsis.com/archives/bugtraq/2002-07/0357.html XForce ISS Database: utillinux-chfn-race-condition(9709) http://www.iss.net/security_center/static/9709.php