CVE-2009-3624: Medium severity red hat kernel-devel vulnerability

Q: What is the severity of CVE-2009-3624?

CVE-2009-3624 has a severity rating of high due to its potential to allow local users to gain elevated privileges or cause a denial of service.

Q: How do I fix CVE-2009-3624?

To fix CVE-2009-3624, users should upgrade to a patched version of the Linux kernel released after 2.6.32-rc5.

Q: What types of systems are affected by CVE-2009-3624?

CVE-2009-3624 affects various versions of the Linux kernel prior to 2.6.32-rc5, including many older distributions.

Q: What is the exploit mechanism for CVE-2009-3624?

The exploit mechanism for CVE-2009-3624 involves improper reference counting that can be triggered through specific system calls.

Q: Who is vulnerable to CVE-2009-3624?

Local users with access to the affected Linux systems are vulnerable to CVE-2009-3624.

Published Nov 2, 2009

Updated

The getinstantiationkeyring function in security/keys/keyctl.c in the KEYS subsystem in the Linux kernel before 2.6.32-rc5 does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (OOPS) via vectors involving calls to this function without specifying a keyring by ID, as demonstrated by a series of keyctl request2 and keyctl list commands.

Affected Software

410 affected components

Linux Kernel=2.6.24.7

Linux Kernel=2.6.25.15

Linux Linux kernel<=2.6.32

Linux Linux kernel=2.6

Linux Linux kernel=2.6.0

Linux Linux kernel=2.6.1

Linux Linux kernel=2.6.2

Linux Linux kernel=2.6.2.27.13

Linux Linux kernel=2.6.3

Linux Linux kernel=2.6.4

Linux Linux kernel=2.6.5

Linux Linux kernel=2.6.6

Linux Linux kernel=2.6.7

Linux Linux kernel=2.6.8

Linux Linux kernel=2.6.8.1

Linux Linux kernel=2.6.9

Linux Linux kernel=2.6.10

Linux Linux kernel=2.6.11

Linux Linux kernel=2.6.11.1

Linux Linux kernel=2.6.11.2

Linux Linux kernel=2.6.11.3

Linux Linux kernel=2.6.11.4

Linux Linux kernel=2.6.11.5

Linux Linux kernel=2.6.11.6

Linux Linux kernel=2.6.11.7

Linux Linux kernel=2.6.11.8

Linux Linux kernel=2.6.11.9

Linux Linux kernel=2.6.11.10

Linux Linux kernel=2.6.11.11

Linux Linux kernel=2.6.11.12

Linux Linux kernel=2.6.12

Linux Linux kernel=2.6.12.1

Linux Linux kernel=2.6.12.2

Linux Linux kernel=2.6.12.3

Linux Linux kernel=2.6.12.4

Linux Linux kernel=2.6.12.5

Linux Linux kernel=2.6.12.6

Linux Linux kernel=2.6.13

Linux Linux kernel=2.6.13.1

Linux Linux kernel=2.6.13.2

Linux Linux kernel=2.6.13.3

Linux Linux kernel=2.6.13.4

Linux Linux kernel=2.6.13.5

Linux Linux kernel=2.6.14

Linux Linux kernel=2.6.14.1

Linux Linux kernel=2.6.14.2

Linux Linux kernel=2.6.14.3

Linux Linux kernel=2.6.14.4

Linux Linux kernel=2.6.14.5

Linux Linux kernel=2.6.14.6

Linux Linux kernel=2.6.14.7

Linux Linux kernel=2.6.15

Linux Linux kernel=2.6.15.1

Linux Linux kernel=2.6.15.2

Linux Linux kernel=2.6.15.3

Linux Linux kernel=2.6.15.4

Linux Linux kernel=2.6.15.5

Linux Linux kernel=2.6.15.6

Linux Linux kernel=2.6.15.7

Linux Linux kernel=2.6.16

Linux Linux kernel=2.6.16.1

Linux Linux kernel=2.6.16.2

Linux Linux kernel=2.6.16.3

Linux Linux kernel=2.6.16.4

Linux Linux kernel=2.6.16.5

Linux Linux kernel=2.6.16.6

Linux Linux kernel=2.6.16.7

Linux Linux kernel=2.6.16.8

Linux Linux kernel=2.6.16.9

Linux Linux kernel=2.6.16.10

Linux Linux kernel=2.6.16.11

Linux Linux kernel=2.6.16.12

Linux Linux kernel=2.6.16.13

Linux Linux kernel=2.6.16.14

Linux Linux kernel=2.6.16.15

Linux Linux kernel=2.6.16.16

Linux Linux kernel=2.6.16.17

Linux Linux kernel=2.6.16.18

Linux Linux kernel=2.6.16.19

Linux Linux kernel=2.6.16.20

Linux Linux kernel=2.6.16.21

Linux Linux kernel=2.6.16.22

Linux Linux kernel=2.6.16.23

Linux Linux kernel=2.6.16.24

Linux Linux kernel=2.6.16.25

Linux Linux kernel=2.6.16.26

Linux Linux kernel=2.6.16.27

Linux Linux kernel=2.6.16.28

Linux Linux kernel=2.6.16.29

Linux Linux kernel=2.6.16.30

Linux Linux kernel=2.6.16.31

Linux Linux kernel=2.6.16.31--rc1

Linux Linux kernel=2.6.16.31--rc2

Linux Linux kernel=2.6.16.31--rc3

Linux Linux kernel=2.6.16.31--rc4

Linux Linux kernel=2.6.16.31--rc5

Linux Linux kernel=2.6.16.32

Linux Linux kernel=2.6.16.33

Linux Linux kernel=2.6.16.34

Linux Linux kernel=2.6.16.35

Linux Linux kernel=2.6.16.36

Linux Linux kernel=2.6.16.37

Linux Linux kernel=2.6.16.38

Linux Linux kernel=2.6.16.39

Linux Linux kernel=2.6.16.40

Linux Linux kernel=2.6.16.41

Linux Linux kernel=2.6.16.42

Linux Linux kernel=2.6.16.43

Linux Linux kernel=2.6.16.44

Linux Linux kernel=2.6.16.45

Linux Linux kernel=2.6.16.46

Linux Linux kernel=2.6.16.47

Linux Linux kernel=2.6.16.48

Linux Linux kernel=2.6.16.49

Linux Linux kernel=2.6.16.50

Linux Linux kernel=2.6.16.51

Linux Linux kernel=2.6.16.52

Linux Linux kernel=2.6.16.53

Linux Linux kernel=2.6.16.54

Linux Linux kernel=2.6.16.55

Linux Linux kernel=2.6.16.56

Linux Linux kernel=2.6.16.57

Linux Linux kernel=2.6.16.58

Linux Linux kernel=2.6.16.59

Linux Linux kernel=2.6.16.60

Linux Linux kernel=2.6.16.61

Linux Linux kernel=2.6.16.62

Linux Linux kernel=2.6.17

Linux Linux kernel=2.6.17.1

Linux Linux kernel=2.6.17.2

Linux Linux kernel=2.6.17.3

Linux Linux kernel=2.6.17.4

Linux Linux kernel=2.6.17.5

Linux Linux kernel=2.6.17.6

Linux Linux kernel=2.6.17.7

Linux Linux kernel=2.6.17.8

Linux Linux kernel=2.6.17.9

Linux Linux kernel=2.6.17.10

Linux Linux kernel=2.6.17.11

Linux Linux kernel=2.6.17.12

Linux Linux kernel=2.6.17.13

Linux Linux kernel=2.6.17.14

Linux Linux kernel=2.6.18

Linux Linux kernel=2.6.18-rc1

Linux Linux kernel=2.6.18-rc2

Linux Linux kernel=2.6.18-rc3

Linux Linux kernel=2.6.18-rc4

Linux Linux kernel=2.6.18-rc5

Linux Linux kernel=2.6.18-rc6

Linux Linux kernel=2.6.18-rc7

Linux Linux kernel=2.6.18.1

Linux Linux kernel=2.6.18.2

Linux Linux kernel=2.6.18.3

Linux Linux kernel=2.6.18.4

Linux Linux kernel=2.6.18.5

Linux Linux kernel=2.6.18.6

Linux Linux kernel=2.6.18.7

Linux Linux kernel=2.6.18.8

Linux Linux kernel=2.6.19

Linux Linux kernel=2.6.19.1

Linux Linux kernel=2.6.19.2

Linux Linux kernel=2.6.19.3

Linux Linux kernel=2.6.19.4

Linux Linux kernel=2.6.19.5

Linux Linux kernel=2.6.19.6

Linux Linux kernel=2.6.19.7

Linux Linux kernel=2.6.20

Linux Linux kernel=2.6.20.1

Linux Linux kernel=2.6.20.2

Linux Linux kernel=2.6.20.3

Linux Linux kernel=2.6.20.4

Linux Linux kernel=2.6.20.5

Linux Linux kernel=2.6.20.6

Linux Linux kernel=2.6.20.7

Linux Linux kernel=2.6.20.8

Linux Linux kernel=2.6.20.9

Linux Linux kernel=2.6.20.10

Linux Linux kernel=2.6.20.11

Linux Linux kernel=2.6.20.12

Linux Linux kernel=2.6.20.13

Linux Linux kernel=2.6.20.14

Linux Linux kernel=2.6.20.15

Linux Linux kernel=2.6.20.16

Linux Linux kernel=2.6.20.17

Linux Linux kernel=2.6.20.18

Linux Linux kernel=2.6.20.19

Linux Linux kernel=2.6.20.20

Linux Linux kernel=2.6.20.21

Linux Linux kernel=2.6.21

Linux Linux kernel=2.6.21.1

Linux Linux kernel=2.6.21.2

Linux Linux kernel=2.6.21.3

Linux Linux kernel=2.6.21.4

Linux Linux kernel=2.6.21.5

Linux Linux kernel=2.6.21.6

Linux Linux kernel=2.6.21.7

Linux Linux kernel=2.6.22

Linux Linux kernel=2.6.22.1

Linux Linux kernel=2.6.22.2

Linux Linux kernel=2.6.22.3

Linux Linux kernel=2.6.22.4

Linux Linux kernel=2.6.22.5

Linux Linux kernel=2.6.22.6

Linux Linux kernel=2.6.22.7

Linux Linux kernel=2.6.22.8

Linux Linux kernel=2.6.22.9

Linux Linux kernel=2.6.22.10

Linux Linux kernel=2.6.22.11

Linux Linux kernel=2.6.22.12

Linux Linux kernel=2.6.22.13

Linux Linux kernel=2.6.22.14

Linux Linux kernel=2.6.22.15

Linux Linux kernel=2.6.22.16

Linux Linux kernel=2.6.22.17

Linux Linux kernel=2.6.22.18

Linux Linux kernel=2.6.22.19

Linux Linux kernel=2.6.22.20

Linux Linux kernel=2.6.22.21

Linux Linux kernel=2.6.22.22

Linux Linux kernel=2.6.23

Linux Linux kernel=2.6.23-rc1

Linux Linux kernel=2.6.23-rc2

Linux Linux kernel=2.6.23.1

Linux Linux kernel=2.6.23.2

Linux Linux kernel=2.6.23.3

Linux Linux kernel=2.6.23.4

Linux Linux kernel=2.6.23.5

Linux Linux kernel=2.6.23.6

Linux Linux kernel=2.6.23.7

Linux Linux kernel=2.6.23.8

Linux Linux kernel=2.6.23.9

Linux Linux kernel=2.6.23.10

Linux Linux kernel=2.6.23.11

Linux Linux kernel=2.6.23.12

Linux Linux kernel=2.6.23.13

Linux Linux kernel=2.6.23.14

Linux Linux kernel=2.6.23.15

Linux Linux kernel=2.6.23.16

Linux Linux kernel=2.6.23.17

Linux Linux kernel=2.6.24

Linux Linux kernel=2.6.24-rc1

Linux Linux kernel=2.6.24-rc2

Linux Linux kernel=2.6.24-rc3

Linux Linux kernel=2.6.24-rc4

Linux Linux kernel=2.6.24-rc5

Linux Linux kernel=2.6.24.1

Linux Linux kernel=2.6.24.2

Linux Linux kernel=2.6.24.3

Linux Linux kernel=2.6.24.4

Linux Linux kernel=2.6.24.5

Linux Linux kernel=2.6.24.6

Linux Linux kernel=2.6.24.7

Linux Linux kernel=2.6.25

Linux Linux kernel=2.6.25.1

Linux Linux kernel=2.6.25.2

Linux Linux kernel=2.6.25.3

Linux Linux kernel=2.6.25.4

Linux Linux kernel=2.6.25.5

Linux Linux kernel=2.6.25.6

Linux Linux kernel=2.6.25.7

Linux Linux kernel=2.6.25.8

Linux Linux kernel=2.6.25.9

Linux Linux kernel=2.6.25.10

Linux Linux kernel=2.6.25.11

Linux Linux kernel=2.6.25.12

Linux Linux kernel=2.6.25.13

Linux Linux kernel=2.6.25.14

Linux Linux kernel=2.6.25.15

Linux Linux kernel=2.6.25.16

Linux Linux kernel=2.6.25.17

Linux Linux kernel=2.6.25.18

Linux Linux kernel=2.6.25.19

Linux Linux kernel=2.6.25.20

Linux Linux kernel=2.6.26

Linux Linux kernel=2.6.26-rc4

Linux Linux kernel=2.6.26.1

Linux Linux kernel=2.6.26.2

Linux Linux kernel=2.6.26.3

Linux Linux kernel=2.6.26.4

Linux Linux kernel=2.6.26.5

Linux Linux kernel=2.6.26.6

Linux Linux kernel=2.6.26.7

Linux Linux kernel=2.6.26.8

Linux Linux kernel=2.6.27

Linux Linux kernel=2.6.27-rc1

Linux Linux kernel=2.6.27-rc2

Linux Linux kernel=2.6.27-rc3

Linux Linux kernel=2.6.27-rc4

Linux Linux kernel=2.6.27-rc5

Linux Linux kernel=2.6.27-rc6

Linux Linux kernel=2.6.27-rc7

Linux Linux kernel=2.6.27-rc8

Linux Linux kernel=2.6.27-rc9

Linux Linux kernel=2.6.27.1

Linux Linux kernel=2.6.27.2

Linux Linux kernel=2.6.27.3

Linux Linux kernel=2.6.27.4

Linux Linux kernel=2.6.27.5

Linux Linux kernel=2.6.27.6

Linux Linux kernel=2.6.27.7

Linux Linux kernel=2.6.27.8

Linux Linux kernel=2.6.27.9

Linux Linux kernel=2.6.27.10

Linux Linux kernel=2.6.27.11

Linux Linux kernel=2.6.27.12

Linux Linux kernel=2.6.27.13

Linux Linux kernel=2.6.27.14

Linux Linux kernel=2.6.27.15

Linux Linux kernel=2.6.27.16

Linux Linux kernel=2.6.27.17

Linux Linux kernel=2.6.27.18

Linux Linux kernel=2.6.27.19

Linux Linux kernel=2.6.27.20

Linux Linux kernel=2.6.27.21

Linux Linux kernel=2.6.27.22

Linux Linux kernel=2.6.27.23

Linux Linux kernel=2.6.27.24

Linux Linux kernel=2.6.27.25

Linux Linux kernel=2.6.27.26

Linux Linux kernel=2.6.27.27

Linux Linux kernel=2.6.27.28

Linux Linux kernel=2.6.27.29

Linux Linux kernel=2.6.27.30

Linux Linux kernel=2.6.27.31

Linux Linux kernel=2.6.27.32

Linux Linux kernel=2.6.27.33

Linux Linux kernel=2.6.27.34

Linux Linux kernel=2.6.27.35

Linux Linux kernel=2.6.27.36

Linux Linux kernel=2.6.27.37

Linux Linux kernel=2.6.28

Linux Linux kernel=2.6.28-git7

Linux Linux kernel=2.6.28-rc1

Linux Linux kernel=2.6.28-rc2

Linux Linux kernel=2.6.28-rc3

Linux Linux kernel=2.6.28-rc4

Linux Linux kernel=2.6.28-rc5

Linux Linux kernel=2.6.28-rc6

Linux Linux kernel=2.6.28-rc7

Linux Linux kernel=2.6.28.1

Linux Linux kernel=2.6.28.2

Linux Linux kernel=2.6.28.3

Linux Linux kernel=2.6.28.4

Linux Linux kernel=2.6.28.5

Linux Linux kernel=2.6.28.6

Linux Linux kernel=2.6.28.7

Linux Linux kernel=2.6.28.8

Linux Linux kernel=2.6.28.9

Linux Linux kernel=2.6.28.10

Linux Linux kernel=2.6.29

Linux Linux kernel=2.6.29-git1

Linux Linux kernel=2.6.29-rc1

Linux Linux kernel=2.6.29-rc2

Linux Linux kernel=2.6.29-rc2_git7

Linux Linux kernel=2.6.29-rc8-kk

Linux Linux kernel=2.6.29.1

Linux Linux kernel=2.6.29.2

Linux Linux kernel=2.6.29.3

Linux Linux kernel=2.6.29.4

Linux Linux kernel=2.6.29.5

Linux Linux kernel=2.6.29.6

Linux Linux kernel=2.6.29.rc1

Linux Linux kernel=2.6.29.rc2

Linux Linux kernel=2.6.30

Linux Linux kernel=2.6.30-rc1

Linux Linux kernel=2.6.30-rc2

Linux Linux kernel=2.6.30-rc3

Linux Linux kernel=2.6.30-rc4

Linux Linux kernel=2.6.30-rc5

Linux Linux kernel=2.6.30-rc6

Linux Linux kernel=2.6.30-rc7-git6

Linux Linux kernel=2.6.30.1

Linux Linux kernel=2.6.30.2

Linux Linux kernel=2.6.30.3

Linux Linux kernel=2.6.30.4

Linux Linux kernel=2.6.30.5

Linux Linux kernel=2.6.30.6

Linux Linux kernel=2.6.30.7

Linux Linux kernel=2.6.30.8

Linux Linux kernel=2.6.30.9

Linux Linux kernel=2.6.31

Linux Linux kernel=2.6.31-rc1

Linux Linux kernel=2.6.31-rc2

Linux Linux kernel=2.6.31-rc3

Linux Linux kernel=2.6.31-rc4

Linux Linux kernel=2.6.31-rc5

Linux Linux kernel=2.6.31-rc6

Linux Linux kernel=2.6.31-rc7

Linux Linux kernel=2.6.31-rc8

Linux Linux kernel=2.6.31.1

Linux Linux kernel=2.6.31.2

Linux Linux kernel=2.6.31.3

Linux Linux kernel=2.6.31.4

Linux Linux kernel=2.6.31.5

Linux Linux kernel=2.6.31.6

Linux Linux kernel=2.6.32-rc1

Linux Linux kernel=2.6.32-rc3

Event History

Nov 2, 2009

CVE Published

via MITRE·03:00 PM

Data Sourced

via MITRE·03:00 PM

Description

Frequently Asked Questions

What is the severity of CVE-2009-3624?

CVE-2009-3624 has a severity rating of high due to its potential to allow local users to gain elevated privileges or cause a denial of service.

How do I fix CVE-2009-3624?

To fix CVE-2009-3624, users should upgrade to a patched version of the Linux kernel released after 2.6.32-rc5.

What types of systems are affected by CVE-2009-3624?