CVE Reference: CVE-2010-2023

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Original Page at CVE MITRE:
CVE-2010-2023

Description:
transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.

CVE Status:
Candidate

References:

XF
  http://xforce.iss.net/xforce/xfdb/59043

UBUNTU
  http://www.ubuntu.com/usn/USN-1060-1

SUSE
  http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

SAID
  Secunia Advisory: SA40019
  Secunia Advisory: SA40123
  Secunia Advisory: SA43243

MLIST
  http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html

FULLDISC
  http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html

FEDORA
  http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html
  http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html

CONFIRM
  http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25
  http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2
  http://bugs.exim.org/show_bug.cgi?id=988

BUGTRAQ
  http://www.securityfocus.com/archive/1/archive/1/511653/100/0/threaded

BID
  40451


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