Vulnerability CVE-2005-4784


Published: 2005-12-31   Modified: 2012-02-12

Description:
Multiple buffer overflows in the POSIX readdir_r function, as used in multiple packages, allow local users to cause a denial of service and possibly execute arbitrary code via (1) a symlink attack that exploits a race condition between opendir and pathcon calls and changes the filesystem to one with a larger maximum directory-entry name length, or (2) possibly via programmer-introduced errors on operating systems with a small struct dirent, such as Solaris or BeOS, as demonstrated in packages including (a) gcj, (b) KDE, (c) libwww, (d) the Rudiments library, (e) teTeX, (f) xmail, (g) bfbtester, (h) ncftp, (i) netwib, (j) OpenOffice.org, (k) Pike, (l) reprepro, (m) Tcl, and (n) xgsmlib.

CVSS2 => (AV:L/AC:H/Au:N/C:C/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.6/10
9.2/10
1.9/10
Exploit range
Attack complexity
Authentication
Local
High
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
Complete
Affected software
Austin group -> Posix 

 References:
http://www.securityfocus.com/bid/15259
http://www.securityfocus.com/archive/1/416048/30/0/threaded
http://www.securityfocus.com/archive/1/416002/30/0/threaded
http://www.securityfocus.com/archive/1/415999/30/0/threaded
http://www.securityfocus.com/archive/1/415998/30/0/threaded
http://www.securityfocus.com/archive/1/415995/30/0/threaded
http://www.securityfocus.com/archive/1/415790/30/0/threaded
http://www.securityfocus.com/archive/1/415781
http://womble.decadentplace.org.uk/readdir_r-advisory.html

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