CVE-2007-0257

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-01-16 · updated 2026-06-16

Description

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

Affected products

Grsecurity Kernel Patch: 1.9.4, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.1.2 (+6)

References

http://forums.grsecurity.net/viewtopic.php?t=1646
http://grsecurity.net/news.php#digitalfud
http://osvdb.org/32727
http://secunia.com/advisories/23713
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

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