Vulnerability CVE-2007-0257
Published: 2007-01-16   Modified: 2012-02-12

Description:
** DISPUTED ** Unspecified vulnerability in the expand_stack function in grsecurity PaX allows local users to gain privileges via unspecified vectors. NOTE: the grsecurity developer has disputed this issue, stating that "the function they claim the vulnerability to be in is a trivial function, which can, and has been, easily checked for any supposed vulnerabilities." The developer also cites a past disclosure that was not proven. As of 20070120, the original researcher has released demonstration code.

Type:

CWE-Other

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Grsecurity -> Grsecurity kernel patch 

 References:
http://forums.grsecurity.net/viewtopic.php?t=1646
http://grsecurity.net/news.php#digitalfud
http://securitytracker.com/id?1017509
http://www.digitalarmaments.com/news_news.shtml
http://www.digitalarmaments.com/pre2007-00018659.html
http://www.securityfocus.com/archive/1/456626/100/0/threaded
http://www.securityfocus.com/archive/1/456722/100/0/threaded
http://www.securityfocus.com/archive/1/457509/100/0/threaded
http://www.securityfocus.com/archive/1/462302/100/100/threaded
http://www.securityfocus.com/bid/22014
http://www.vupen.com/english/advisories/2007/0155
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