Vulnerabilities
By Date By Type Known Exploited Assigners CVSS Scores EPSS Scores Search
Vulnerable Software
Vendors Products Version Search
Metasploit Modules CWE Definitions
Articles Blog

Vulnerability Details : CVE-2009-2692

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.
Vulnerability category: OverflowMemory Corruption
Published 2009-08-14 15:16:28
Updated 2018-10-10 19:41:40
Source MITRE
View at NVD,   CVE.org
At least one public exploit which can be used to exploit this vulnerability exists!

Exploit prediction scoring system (EPSS) score for CVE-2009-2692

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 20 % EPSS Score History EPSS FAQ

Metasploit modules for CVE-2009-2692

  • Linux Kernel Sendpage Local Privilege Escalation
    Disclosure Date : 2009-08-13
    exploit/linux/local/sock_sendpage
    The Linux kernel failed to properly initialize some entries in the proto_ops struct for several protocols, leading to NULL being dereferenced and used as a function pointer. By using mmap(2) to map page 0, an attacker can execute arbitrary code in the context of the kernel. Several public exploits exist for this vulnerability, including spender's wunderbar_emporium and rcvalle's ppc port, sock_sendpage.c. All Linux 2.4/2.6 versions since May 2001 are believed to be affected: 2.4.4 up to and including 2.4.37.4; 2.6.0 up to and including 2.6.30.4 This module has been tested successfully on CentOS 5.0 (i386) with kernel version 2.6.18-8.1.1.tl5; and Debian 3.1r8 Sarge (i686) with kernel version 2.4.27-3-386. Authors: - Tavis Ormandy - Julien Tinnes <julien at cr0.org> - spender - rcvalle - egypt <[email protected]>

CVSS scores for CVE-2009-2692

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
7.2
 HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C
3.9
10.0
 [email protected]

CWE ids for CVE-2009-2692

Vendor statements for CVE-2009-2692

This web site uses cookies for managing your session and website analytics (Google analytics) purposes as described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!
Accept Close