CVE-2009-3043

Severity

49%

Complexity

39%

Confidentiality

115%

The tty_ldisc_hangup function in drivers/char/tty_ldisc.c in the Linux kernel 2.6.31-rc before 2.6.31-rc8 allows local users to cause a denial of service (system crash, sometimes preceded by a NULL pointer dereference) or possibly gain privileges via certain pseudo-terminal I/O activity, as demonstrated by KernelTtyTest.c.

The tty_ldisc_hangup function in drivers/char/tty_ldisc.c in the Linux kernel 2.6.31-rc before 2.6.31-rc8 allows local users to cause a denial of service (system crash, sometimes preceded by a NULL pointer dereference) or possibly gain privileges via certain pseudo-terminal I/O activity, as demonstrated by KernelTtyTest.c.

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Overview

Type

Linux Kernel

First reported 15 years ago

2009-09-02 17:30:00

Last updated 12 years ago

2012-03-19 04:00:00

Affected Software

Linux Kernel 2.6.0

2.6.0

Linux Kernel 2.6.1

2.6.1

Linux Kernel 2.6.2

2.6.2

Linux Kernel 2.6.3

2.6.3

Linux Kernel 2.6.4

2.6.4

Linux Kernel 2.6.5

2.6.5

Linux Kernel 2.6.6

2.6.6

Linux Kernel 2.6.7

2.6.7

Linux Kernel 2.6.8

2.6.8

Linux Kernel 2.6.8.1

2.6.8.1

Linux Kernel 2.6.9

2.6.9

Linux Kernel 2.6.10

2.6.10

Linux Kernel 2.6.11

2.6.11

Linux Kernel 2.6.11.1

2.6.11.1

Linux Kernel 2.6.11.2

2.6.11.2

Linux Kernel 2.6.11.3

2.6.11.3

Linux Kernel 2.6.11.4

2.6.11.4

Linux Kernel 2.6.11.5

2.6.11.5

Linux Kernel 2.6.11.6

2.6.11.6

Linux Kernel 2.6.11.7

2.6.11.7

Linux Kernel 2.6.11.8

2.6.11.8

Linux Kernel 2.6.11.9

2.6.11.9

Linux Kernel 2.6.11.10

2.6.11.10

Linux Kernel 2.6.11.11

2.6.11.11

Linux Kernel 2.6.11.12

2.6.11.12

Linux Kernel 2.6.12

2.6.12

Linux Kernel 2.6.12.1

2.6.12.1

Linux Kernel 2.6.12.2

2.6.12.2

Linux Kernel 2.6.12.3

2.6.12.3

Linux Kernel 2.6.12.4

2.6.12.4

Linux Kernel 2.6.12.5

2.6.12.5

Linux Kernel 2.6.12.6

2.6.12.6

Linux Kernel 2.6.13

2.6.13

Linux Kernel 2.6.13.1

2.6.13.1

Linux Kernel 2.6.13.2

2.6.13.2

Linux Kernel 2.6.13.3

2.6.13.3

Linux Kernel 2.6.13.4

2.6.13.4

Linux Kernel 2.6.13.5

2.6.13.5

Linux Kernel 2.6.14

2.6.14

Linux Kernel 2.6.14.1

2.6.14.1

Linux Kernel 2.6.14.2

2.6.14.2

Linux Kernel 2.6.14.3

2.6.14.3

Linux Kernel 2.6.14.4

2.6.14.4

Linux Kernel 2.6.14.5

2.6.14.5

Linux Kernel 2.6.14.6

2.6.14.6

Linux Kernel 2.6.14.7

2.6.14.7

Linux Kernel 2.6.15

2.6.15

Linux Kernel 2.6.15.1

2.6.15.1

Linux Kernel 2.6.15.2

2.6.15.2

Linux Kernel 2.6.15.3

2.6.15.3

Linux Kernel 2.6.15.4

2.6.15.4

Linux Kernel 2.6.15.5

2.6.15.5

Linux Kernel 2.6.15.6

2.6.15.6

Linux Kernel 2.6.15.7

2.6.15.7

Linux Kernel 2.6.16

2.6.16

Linux Kernel 2.6.16.1

2.6.16.1

Linux Kernel 2.6.16.2

2.6.16.2

Linux Kernel 2.6.16.3

2.6.16.3

Linux Kernel 2.6.16.4

2.6.16.4

Linux Kernel 2.6.16.5

2.6.16.5

Linux Kernel 2.6.16.6

2.6.16.6

Linux Kernel 2.6.16.7

2.6.16.7

Linux Kernel 2.6.16.8

2.6.16.8

Linux Kernel 2.6.16.9

2.6.16.9

Linux Kernel 2.6.16.10

2.6.16.10

Linux Kernel 2.6.16.11

2.6.16.11

Linux Kernel 2.6.16.12

2.6.16.12

Linux Kernel 2.6.16.13

2.6.16.13

Linux Kernel 2.6.16.14

2.6.16.14

Linux Kernel 2.6.16.15

2.6.16.15

Linux Kernel 2.6.16.16

2.6.16.16

Linux Kernel 2.6.16.17

2.6.16.17

Linux Kernel 2.6.16.18

2.6.16.18

Linux Kernel 2.6.16.19

2.6.16.19

Linux Kernel 2.6.16.20

2.6.16.20

Linux Kernel 2.6.16.21

2.6.16.21

Linux Kernel 2.6.16.22

2.6.16.22

Linux Kernel 2.6.16.23

2.6.16.23

Linux Kernel 2.6.16.24

2.6.16.24

Linux Kernel 2.6.16.25

2.6.16.25

Linux Kernel 2.6.16.26

2.6.16.26

Linux Kernel 2.6.16.27

2.6.16.27

Linux Kernel 2.6.16.28

2.6.16.28

Linux Kernel 2.6.16.29

2.6.16.29

Linux Kernel 2.6.16.30

2.6.16.30

Linux Kernel 2.6.16.31

2.6.16.31

Linux Kernel 2.6.16.32

2.6.16.32

Linux Kernel 2.6.16.33

2.6.16.33

Linux Kernel 2.6.16.34

2.6.16.34

Linux Kernel 2.6.16.35

2.6.16.35

Linux Kernel 2.6.16.36

2.6.16.36

Linux Kernel 2.6.16.37

2.6.16.37

Linux Kernel 2.6.16.38

2.6.16.38

Linux Kernel 2.6.16.39

2.6.16.39

Linux Kernel 2.6.16.40

2.6.16.40

Linux Kernel 2.6.16.41

2.6.16.41

Linux Kernel 2.6.16.42

2.6.16.42

Linux Kernel 2.6.16.43

2.6.16.43

Linux Kernel 2.6.16.44

2.6.16.44

Linux Kernel 2.6.16.45

2.6.16.45

Linux Kernel 2.6.16.46

2.6.16.46

Linux Kernel 2.6.16.47

2.6.16.47

Linux Kernel 2.6.16.48

2.6.16.48

Linux Kernel 2.6.16.49

2.6.16.49

Linux Kernel 2.6.16.50

2.6.16.50

Linux Kernel 2.6.16.51

2.6.16.51

Linux Kernel 2.6.16.52

2.6.16.52

Linux Kernel 2.6.16.53

2.6.16.53

Linux Kernel 2.6.16.54

2.6.16.54

Linux Kernel 2.16.55

2.6.16.55

Linux Kernel 2.6.16.56

2.6.16.56

Linux Kernel 2.6.16.57

2.6.16.57

Linux Kernel 2.6.16.58

2.6.16.58

Linux Kernel 2.6.16.59

2.6.16.59

Linux Kernel 2.6.16.60

2.6.16.60

Linux Kernel 2.6.16.61

2.6.16.61

Linux Kernel 2.6.16.62

2.6.16.62

Linux Kernel 2.6.17

2.6.17

Linux Kernel 2.6.17.1

2.6.17.1

Linux Kernel 2.6.17.2

2.6.17.2

Linux Kernel 2.6.17.3

2.6.17.3

Linux Kernel 2.6.17.4

2.6.17.4

Linux Kernel 2.6.17.5

2.6.17.5

Linux Kernel 2.6.17.6

2.6.17.6

Linux Kernel 2.6.17.7

2.6.17.7

Linux Kernel 2.6.17.8

2.6.17.8

Linux Kernel 2.6.17.9

2.6.17.9

Linux Kernel 2.6.17.10

2.6.17.10

Linux Kernel 2.6.17.11

2.6.17.11

Linux Kernel 2.6.17.12

2.6.17.12

Linux Kernel 2.6.17.13

2.6.17.13

Linux Kernel 2.6.17.14

2.6.17.14

Linux Kernel 2.6.18

2.6.18

Linux Kernel 2.6.18.1

2.6.18.1

Linux Kernel 2.6.18.2

2.6.18.2

Linux Kernel 2.6.18.3

2.6.18.3

Linux Kernel 2.6.18.4

2.6.18.4

Linux Kernel 2.6.18.5

2.6.18.5

Linux Kernel 2.6.18.6

2.6.18.6

Linux Kernel 2.6.18.7

2.6.18.7

Linux Kernel 2.6.18.8

2.6.18.8

Linux Kernel 2.6.19

2.6.19

Linux Kernel 2.6.19.1

2.6.19.1

Linux Kernel 2.6.19.2

2.6.19.2

Linux Kernel 2.6.19.3

2.6.19.3

Linux Kernel 2.6.19.4

2.6.19.4

Linux Kernel 2.6.19.5

2.6.19.5

Linux Kernel 2.6.19.6

2.6.19.6

Linux Kernel 2.6.19.7

2.6.19.7

Linux Kernel 2.6.20

2.6.20

Linux Kernel 2.6.20.1

2.6.20.1

Linux Kernel 2.6.20.2

2.6.20.2

Linux Kernel 2.6.20.3

2.6.20.3

Linux Kernel 2.6.20.4

2.6.20.4

Linux Kernel 2.6.20.5

2.6.20.5

Linux Kernel 2.6.20.6

2.6.20.6

Linux Kernel 2.6.20.7

2.6.20.7

Linux Kernel 2.6.20.8

2.6.20.8

Linux Kernel 2.6.20.9

2.6.20.9

Linux Kernel 2.6.20.10

2.6.20.10

Linux Kernel 2.6.20.11

2.6.20.11

Linux Kernel 2.6.20.12

2.6.20.12

Linux Kernel 2.6.20.13

2.6.20.13

Linux Kernel 2.6.20.14

2.6.20.14

Linux Kernel 2.6.20.15

2.6.20.15

Linux Kernel 2.6.20.16

2.6.20.16

Linux Kernel 2.6.20.17

2.6.20.17

Linux Kernel 2.6.20.18

2.6.20.18

Linux Kernel 2.6.20.19

2.6.20.19

Linux Kernel 2.6.20.20

2.6.20.20

Linux Kernel 2.6.20.21

2.6.20.21

Linux Kernel 2.6.21

2.6.21

Linux Kernel 2.6.21.1

2.6.21.1

Linux Kernel 2.6.21.2

2.6.21.2

Linux Kernel 2.6.21.3

2.6.21.3

Linux Kernel 2.6.21.4

2.6.21.4

Linux Kernel 2.6.21.5

2.6.21.5

Linux Kernel 2.6.21.6

2.6.21.6

Linux Kernel 2.6.21.7

2.6.21.7

Linux Kernel 2.6.22

2.6.22

Linux Kernel 2.6.22.1

2.6.22.1

Linux Kernel 2.6.22.2

2.6.22.2

Linux Kernel 2.6.22.3

2.6.22.3

Linux Kernel 2.6.22.4

2.6.22.4

Linux Kernel 2.6.22.5

2.6.22.5

Linux Kernel 2.6.22.6

2.6.22.6

Linux Kernel 2.6.22.7

2.6.22.7

Linux Kernel 2.6.22.8

2.6.22.8

Linux Kernel 2.6.22.9

2.6.22.9

Linux Kernel 2.6.22.10

2.6.22.10

Linux Kernel 2.6.22.11

2.6.22.11

Linux Kernel 2.6.22.12

2.6.22.12

Linux Kernel 2.6.22.13

2.6.22.13

Linux Kernel 2.6.22.14

2.6.22.14

Linux Kernel 2.6.22.15

2.6.22.15

Linux Kernel 2.6.22.16

2.6.22.16

Linux Kernel 2.6.22.17

2.6.22.17

Linux Kernel 2.6.22.18

2.6.22.18

Linux Kernel 2.6.22.19

2.6.22.19

Linux Kernel 2.6.23

2.6.23

Linux Kernel 2.6.23.1

2.6.23.1

Linux Kernel 2.6.23.2

2.6.23.2

Linux Kernel 2.6.23.3

2.6.23.3

Linux Kernel 2.6.23.4

2.6.23.4

Linux Kernel 2.6.23.5

2.6.23.5

Linux Kernel 2.6.23.6

2.6.23.6

Linux Kernel 2.6.23.7

2.6.23.7

Linux Kernel 2.6.23.8

2.6.23.8

Linux Kernel 2.6.23.9

2.6.23.9

Linux Kernel 2.6.23.10

2.6.23.10

Linux Kernel 2.6.23.11

2.6.23.11

Linux Kernel 2.6.23.12

2.6.23.12

Linux Kernel 2.6.23.13

2.6.23.13

Linux Kernel 2.6.23.14

2.6.23.14

Linux Kernel 2.6.23.16

2.6.23.15

Linux Kernel 2.6.23.16

2.6.23.16

Linux Kernel 2.6.23.17

2.6.23.17

Linux Kernel 2.6.24

2.6.24

Linux Kernel 2.6.24.1

2.6.24.1

Linux Kernel 2.6.24.2

2.6.24.2

Linux Kernel 2.6.24.3

2.6.24.3

Linux Kernel 2.6.24.4

2.6.24.4

Linux Kernel 2.6.24.5

2.6.24.5

Linux Kernel 2.6.24.6

2.6.24.6

Linux Kernel 2.6.24.7

2.6.24.7

Linux Kernel 2.6.25

2.6.25

Linux Kernel 2.6.25.1

2.6.25.1

Linux Kernel 2.6.25.2

2.6.25.2

Linux Kernel 2.6.25.3

2.6.25.3

Linux Kernel 2.6.25.4

2.6.25.4

Linux Kernel 2.6.25.5

2.6.25.5

Linux Kernel 2.6.25.6

2.6.25.6

Linux Kernel 2.6.25.7

2.6.25.7

Linux Kernel 2.6.25.8

2.6.25.8

Linux Kernel 2.6.25.9

2.6.25.9

Linux Kernel 2.6.25.10

2.6.25.10

Linux Kernel 2.6.25.11

2.6.25.11

Linux Kernel 2.6.25.12

2.6.25.12

Linux Kernel 2.6.25.13

2.6.25.13

Linux Kernel 2.6.25.14

2.6.25.14

Linux Kernel 2.6.25.15

2.6.25.15

Linux Kernel 2.6.25.16

2.6.25.16

Linux Kernel 2.6.25.17

2.6.25.17

Linux Kernel 2.6.25.18

2.6.25.18

Linux Kernel 2.6.25.19

2.6.25.19

Linux Kernel 2.6.25.20

2.6.25.20

Linux Kernel 2.6.26

2.6.26

Linux Kernel 2.6.26.1

2.6.26.1

Linux Kernel 2.6.26.2

2.6.26.2

Linux Kernel 2.6.26.3

2.6.26.3

Linux Kernel 2.6.26.4

2.6.26.4

Linux Kernel 2.6.26.5

2.6.26.5

Linux Kernel 2.6.26.6

2.6.26.6

Linux Kernel 2.6.26.7

2.6.26.7

Linux Kernel 2.6.26.8

2.6.26.8

Linux Kernel 2.6.27

2.6.27

Linux Kernel 2.6.27.1

2.6.27.1

Linux Kernel 2.6.27.2

2.6.27.2

Linux Kernel 2.6.27.3

2.6.27.3

Linux Kernel 2.6.27.4

2.6.27.4

Linux Kernel 2.6.27.5

2.6.27.5

Linux Kernel 2.6.27.6

2.6.27.6

Linux Kernel 2.6.27.7

2.6.27.7

Linux Kernel 2.6.27.8

2.6.27.8

Linux Kernel 2.6.27.9

2.6.27.9

Linux Kernel 2.6.27.10

2.6.27.10

Linux Kernel 2.6.27.11

2.6.27.11

Linux Kernel 2.6.27.12

2.6.27.12

Linux Kernel 2.6.27.13

2.6.27.13

Linux Kernel 2.6.27.14

2.6.27.14

Linux Kernel 2.6.27.15

2.6.27.15

Linux Kernel 2.6.27.16

2.6.27.16

Linux Kernel 2.6.27.17

2.6.27.17

Linux Kernel 2.6.27.18

2.6.27.18

Linux Kernel 2.6.27.19

2.6.27.19

Linux Kernel 2.6.27.20

2.6.27.20

Linux Kernel 2.6.27.21

2.6.27.21

Linux Kernel 2.6.27.22

2.6.27.22

Linux Kernel 2.6.27.23

2.6.27.23

Linux Kernel 2.6.27.24

2.6.27.24

Linux Kernel 2.6.27.25

2.6.27.25

Linux Kernel 2.6.27.26

2.6.27.26

Linux Kernel 2.6.27.27

2.6.27.27

Linux Kernel 2.6.27.28

2.6.27.28

Linux Kernel 2.6.27.29

2.6.27.29

Linux Kernel 2.6.27.30

2.6.27.30

Linux Kernel 2.6.27.31

2.6.27.31

Linux Kernel 2.6.28

2.6.28

Linux Kernel 2.6.28.1

2.6.28.1

Linux Kernel 2.6.28.2

2.6.28.2

Linux Kernel 2.6.28.3

2.6.28.3

Linux Kernel 2.6.28.4

2.6.28.4

Linux Kernel 2.6.28.5

2.6.28.5

Linux Kernel 2.6.28.6

2.6.28.6

Linux Kernel 2.6.28.7

2.6.28.7

Linux Kernel 2.6.28.8

2.6.28.8

Linux Kernel 2.6.28.9

2.6.28.9

Linux Kernel 2.6.28.10

2.6.28.10

Linux Kernel 2.6.29

2.6.29

Linux Kernel 2.6.29.1

2.6.29.1

Linux Kernel 2.6.29.2

2.6.29.2

Linux Kernel 2.6.29.3

2.6.29.3

Linux Kernel 2.6.29.4

2.6.29.4

Linux Kernel 2.6.29.5

2.6.29.5

Linux Kernel 2.6.29.6

2.6.29.6

Linux Kernel 2.6.30

2.6.30

Linux Kernel 2.6.30.1

2.6.30.1

Linux Kernel 2.6.30.2

2.6.30.2

Linux Kernel 2.6.30.3

2.6.30.3

Linux Kernel 2.6.30.4

2.6.30.4

Linux Kernel 2.6.30.5

2.6.30.5

Linux Kernel 2.6.31 Release Candidate 1

2.6.31

Linux Kernel 2.6.31 Release Candidate 2

2.6.31

Linux Kernel 2.6.31 Release Candidate 3

2.6.31

Linux Kernel 2.6.31 Release Candidate 6

2.6.31

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5c58ceff103d8a654f24769bb1baaf84a841b0cc

[linux-kernel] 20090819 v2.6.31-rc6: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008

Exploit

[linux-kernel] 20090819 Re: v2.6.31-rc6: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008

Exploit

[linux-kernel] 20090820 Re: v2.6.31-rc6: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008

http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc8

[oss-security] 20090831 CVE request: kernel: tty: make sure to flush any pending work when halting the ldisc

[oss-security] 20090903 Re: CVE request: kernel: tty: make sure to flush any pending work when halting the ldisc

[oss-security] 20090904 Re: CVE request: kernel: tty: make sure to flush any pending work when halting the ldisc

36191

Exploit, Patch

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.