CVE-2002-0638

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-043.0.txt
• http://www.securityfocus.com/bid/5344
• http://www.iss.net/security_center/static/9709.php
• http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-047.php
• http://rhn.redhat.com/errata/RHSA-2002-132.html
• http://www.kb.cert.org/vuls/id/405955
• http://archives.neohapsis.com/archives/bugtraq/2002-07/0357.html
• http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000523
• http://online.securityfocus.com/advisories/4320
• http://archives.neohapsis.com/archives/bugtraq/2002-07/0396.html
• http://marc.info/?l=bugtraq&m=102795787713996&w=2
• http://www.redhat.com/support/errata/RHSA-2002-137.html
• http://www.osvdb.org/5164

References

• ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-043.0.txt
• http://www.securityfocus.com/bid/5344
• http://www.iss.net/security_center/static/9709.php
• http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-047.php
• http://rhn.redhat.com/errata/RHSA-2002-132.html
• http://www.kb.cert.org/vuls/id/405955
• http://archives.neohapsis.com/archives/bugtraq/2002-07/0357.html
• http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000523
• http://online.securityfocus.com/advisories/4320
• http://archives.neohapsis.com/archives/bugtraq/2002-07/0396.html
• http://marc.info/?l=bugtraq&m=102795787713996&w=2
• http://www.redhat.com/support/errata/RHSA-2002-137.html
• http://www.osvdb.org/5164

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