CVE-2006-6056: Null Pointer Dereference
First published: Wed Nov 22 2006(Updated: )
Linux kernel 2.6.x up to 2.6.18 and possibly other versions, when SELinux hooks are enabled, allows local users to cause a denial of service (crash) via a malformed file stream that triggers a NULL pointer dereference in the superblock_doinit function, as demonstrated using an HFS filesystem image.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | =2.6.11 | |
| Linux kernel | =2.6.16.16 | |
| Linux kernel | =2.6.17.12 | |
| Linux kernel | =2.6.16.9 | |
| Linux kernel | =2.6.17.9 | |
| Linux kernel | =2.6.11.2 | |
| Linux kernel | =2.6.5 | |
| Linux kernel | =2.6.15.3 | |
| Linux kernel | =2.6.11.10 | |
| Linux kernel | =2.6.1 | |
| Linux kernel | =2.6.16.6 | |
| Linux kernel | =2.6.16.8 | |
| Linux kernel | =2.6.14.7 | |
| Linux kernel | =2.6.13 | |
| Linux kernel | =2.6.17.2 | |
| Linux kernel | =2.6.13.3 | |
| Linux kernel | =2.6.11.8 | |
| Linux kernel | =2.6.17.8 | |
| Linux kernel | =2.6.14.4 | |
| Linux kernel | =2.6.14 | |
| Linux kernel | =2.6.17.4 | |
| Linux kernel | =2.6.16.18 | |
| Linux kernel | =2.6.17.14 | |
| Linux kernel | =2.6.10 | |
| Linux kernel | =2.6.14.3 | |
| Linux kernel | =2.6.11.6 | |
| Linux kernel | =2.6.11.11 | |
| Linux kernel | =2.6.16.13 | |
| Linux kernel | =2.6.3 | |
| Linux kernel | =2.6.16.4 | |
| Linux kernel | =2.6.17.3 | |
| Linux kernel | =2.6.4 | |
| Linux kernel | =2.6.16.15 | |
| Linux kernel | =2.6.15.6 | |
| Linux kernel | =2.6.15.1 | |
| Linux kernel | =2.6.11.5 | |
| Linux kernel | =2.6.16.1 | |
| Linux kernel | =2.6.2 | |
| Linux kernel | =2.6.14.5 | |
| Linux kernel | =2.6.13.2 | |
| Linux kernel | =2.6.17.5 | |
| Linux kernel | =2.6.16.32 | |
| Linux kernel | =2.6.13.5 | |
| Linux kernel | =2.6.17 | |
| Linux kernel | =2.6.16.11 | |
| Linux kernel | =2.6.16.14 | |
| Linux kernel | =2.6.16.25 | |
| Linux kernel | =2.6.16.21 | |
| Linux kernel | =2.6.16.33 | |
| Linux kernel | =2.6.8 | |
| Linux kernel | =2.6.16.28 | |
| Linux kernel | =2.6.17.10 | |
| Linux kernel | =2.6.14.1 | |
| Linux kernel | =2.6.16.23 | |
| Linux kernel | =2.6.12.5 | |
| Linux kernel | =2.6.15.7 | |
| Linux kernel | =2.6.16.3 | |
| Linux kernel | =2.6.14.6 | |
| Linux kernel | =2.6.12.1 | |
| Linux kernel | =2.6.11.9 | |
| Linux kernel | =2.6.17.1 | |
| Linux kernel | =2.6.0 | |
| Linux kernel | =2.6.13.4 | |
| Linux kernel | =2.6.12.2 | |
| Linux kernel | =2.6.16.31 | |
| Linux kernel | =2.6.16.26 | |
| Linux kernel | =2.6.16.29 | |
| Linux kernel | =2.6.16 | |
| Linux kernel | =2.6.15.2 | |
| Linux kernel | =2.6.16.22 | |
| Linux kernel | =2.6.17.11 | |
| Linux kernel | =2.6.16.10 | |
| Linux kernel | =2.6.12.4 | |
| Linux kernel | =2.6.11.3 | |
| Linux kernel | =2.6.16.24 | |
| Linux kernel | =2.6.12.3 | |
| Linux kernel | =2.6.7 | |
| Linux kernel | =2.6.16.30 | |
| Linux kernel | =2.6.15.4 | |
| Linux kernel | =2.6.16.17 | |
| Linux kernel | =2.6.16.12 | |
| Linux kernel | =2.6.9-2.6.20 | |
| Linux kernel | =2.6.16.27 | |
| Linux kernel | =2.6.12.6 | |
| Linux kernel | =2.6.17.7 | |
| Linux kernel | =2.6.11.7 | |
| Linux kernel | =2.6.16.2 | |
| Linux kernel | =2.6.15 | |
| Linux kernel | =2.6.14.2 | |
| Linux kernel | =2.6.18 | |
| Linux kernel | =2.6.17.6 | |
| Linux kernel | =2.6.16.7 | |
| Linux kernel | =2.6.17.13 | |
| Linux kernel | =2.6.8.1 | |
| Linux kernel | =2.6.16.5 | |
| Linux kernel | =2.6.11.4 | |
| Linux kernel | =2.6.16.19 | |
| Linux kernel | =2.6.11.12 | |
| Linux kernel | =2.6.16.20 | |
| Linux kernel | =2.6.15.5 | |
| Linux kernel | =2.6.11.1 | |
| Linux kernel | =2.6.13.1 | |
| Linux kernel | =2.6.6 | |
| Linux kernel | =2.6.12 | |
| Linux Kernel | =2.6.0 | |
| Linux Kernel | =2.6.1 | |
| Linux Kernel | =2.6.2 | |
| Linux Kernel | =2.6.3 | |
| Linux Kernel | =2.6.4 | |
| Linux Kernel | =2.6.5 | |
| Linux Kernel | =2.6.6 | |
| Linux Kernel | =2.6.7 | |
| Linux Kernel | =2.6.8 | |
| Linux Kernel | =2.6.8.1 | |
| Linux Kernel | =2.6.9-2.6.20 | |
| Linux Kernel | =2.6.10 | |
| Linux Kernel | =2.6.11 | |
| Linux Kernel | =2.6.11.1 | |
| Linux Kernel | =2.6.11.2 | |
| Linux Kernel | =2.6.11.3 | |
| Linux Kernel | =2.6.11.4 | |
| Linux Kernel | =2.6.11.5 | |
| Linux Kernel | =2.6.11.6 | |
| Linux Kernel | =2.6.11.7 | |
| Linux Kernel | =2.6.11.8 | |
| Linux Kernel | =2.6.11.9 | |
| Linux Kernel | =2.6.11.10 | |
| Linux Kernel | =2.6.11.11 | |
| Linux Kernel | =2.6.11.12 | |
| Linux Kernel | =2.6.12 | |
| Linux Kernel | =2.6.12.1 | |
| Linux Kernel | =2.6.12.2 | |
| Linux Kernel | =2.6.12.3 | |
| Linux Kernel | =2.6.12.4 | |
| Linux Kernel | =2.6.12.5 | |
| Linux Kernel | =2.6.12.6 | |
| Linux Kernel | =2.6.13 | |
| Linux Kernel | =2.6.13.1 | |
| Linux Kernel | =2.6.13.2 | |
| Linux Kernel | =2.6.13.3 | |
| Linux Kernel | =2.6.13.4 | |
| Linux Kernel | =2.6.13.5 | |
| Linux Kernel | =2.6.14 | |
| Linux Kernel | =2.6.14.1 | |
| Linux Kernel | =2.6.14.2 | |
| Linux Kernel | =2.6.14.3 | |
| Linux Kernel | =2.6.14.4 | |
| Linux Kernel | =2.6.14.5 | |
| Linux Kernel | =2.6.14.6 | |
| Linux Kernel | =2.6.14.7 | |
| Linux Kernel | =2.6.15 | |
| Linux Kernel | =2.6.15.1 | |
| Linux Kernel | =2.6.15.2 | |
| Linux Kernel | =2.6.15.3 | |
| Linux Kernel | =2.6.15.4 | |
| Linux Kernel | =2.6.15.5 | |
| Linux Kernel | =2.6.15.6 | |
| Linux Kernel | =2.6.15.7 | |
| Linux Kernel | =2.6.16 | |
| Linux Kernel | =2.6.16.1 | |
| Linux Kernel | =2.6.16.2 | |
| Linux Kernel | =2.6.16.3 | |
| Linux Kernel | =2.6.16.4 | |
| Linux Kernel | =2.6.16.5 | |
| Linux Kernel | =2.6.16.6 | |
| Linux Kernel | =2.6.16.7 | |
| Linux Kernel | =2.6.16.8 | |
| Linux Kernel | =2.6.16.9 | |
| Linux Kernel | =2.6.16.10 | |
| Linux Kernel | =2.6.16.11 | |
| Linux Kernel | =2.6.16.12 | |
| Linux Kernel | =2.6.16.13 | |
| Linux Kernel | =2.6.16.14 | |
| Linux Kernel | =2.6.16.15 | |
| Linux Kernel | =2.6.16.16 | |
| Linux Kernel | =2.6.16.17 | |
| Linux Kernel | =2.6.16.18 | |
| Linux Kernel | =2.6.16.19 | |
| Linux Kernel | =2.6.16.20 | |
| Linux Kernel | =2.6.16.21 | |
| Linux Kernel | =2.6.16.22 | |
| Linux Kernel | =2.6.16.23 | |
| Linux Kernel | =2.6.16.24 | |
| Linux Kernel | =2.6.16.25 | |
| Linux Kernel | =2.6.16.26 | |
| Linux Kernel | =2.6.16.27 | |
| Linux Kernel | =2.6.16.28 | |
| Linux Kernel | =2.6.16.29 | |
| Linux Kernel | =2.6.16.30 | |
| Linux Kernel | =2.6.16.31 | |
| Linux Kernel | =2.6.16.32 | |
| Linux Kernel | =2.6.16.33 | |
| Linux Kernel | =2.6.17 | |
| Linux Kernel | =2.6.17.1 | |
| Linux Kernel | =2.6.17.2 | |
| Linux Kernel | =2.6.17.3 | |
| Linux Kernel | =2.6.17.4 | |
| Linux Kernel | =2.6.17.5 | |
| Linux Kernel | =2.6.17.6 | |
| Linux Kernel | =2.6.17.7 | |
| Linux Kernel | =2.6.17.8 | |
| Linux Kernel | =2.6.17.9 | |
| Linux Kernel | =2.6.17.10 | |
| Linux Kernel | =2.6.17.11 | |
| Linux Kernel | =2.6.17.12 | |
| Linux Kernel | =2.6.17.13 | |
| Linux Kernel | =2.6.17.14 | |
| Linux Kernel | =2.6.18 |
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Reference Links
- http://projects.info-pull.com/mokb/MOKB-14-11-2006.html
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html
- http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
- http://rhn.redhat.com/errata/RHSA-2007-0014.html
- http://www.ubuntu.com/usn/usn-416-1
- http://secunia.com/advisories/23997
- http://secunia.com/advisories/22887
- http://secunia.com/advisories/24098
- http://secunia.com/advisories/24206
- http://secunia.com/advisories/24482
- http://secunia.com/advisories/24777
- http://www.securityfocus.com/archive/1/471457
- http://www.debian.org/security/2007/dsa-1304
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:060
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:078
- http://secunia.com/advisories/25714
- http://secunia.com/advisories/25691
- http://secunia.com/advisories/23474
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30278
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9949
Frequently Asked Questions
What is the severity of CVE-2006-6056?
CVE-2006-6056 has a severity rating that indicates it could potentially lead to a denial of service due to a crash in affected Linux kernel versions.
How do I fix CVE-2006-6056?
To fix CVE-2006-6056, it is recommended to update your Linux kernel to a version that has addressed this vulnerability.
Which Linux kernel versions are affected by CVE-2006-6056?
CVE-2006-6056 affects Linux kernel versions from 2.6.0 up to 2.6.18 when SELinux hooks are enabled.
What types of attacks can exploit CVE-2006-6056?
CVE-2006-6056 can be exploited by local users who create a malformed file stream to trigger a null pointer dereference.
Is CVE-2006-6056 a remote or local attack vector?
CVE-2006-6056 is primarily a local attack vector, requiring local user access to exploit the vulnerability.
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/description
- agent/type
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/tags
- collector/nvd-historical
- vendor/linux
- product/linux kernel
- canonical/linux linux kernel
- agent/software-canonical-lookup-request
- collector/nvd-index
- canonical/linux kernel
- version/linux kernel/2.6.11
- version/linux kernel/2.6.16.16
- version/linux kernel/2.6.17.12
- version/linux kernel/2.6.16.9
- version/linux kernel/2.6.17.9
- version/linux kernel/2.6.11.2
- version/linux kernel/2.6.5
- version/linux kernel/2.6.15.3
- version/linux kernel/2.6.11.10
- version/linux kernel/2.6.1
- version/linux kernel/2.6.16.6
- version/linux kernel/2.6.16.8
- version/linux kernel/2.6.14.7
- version/linux kernel/2.6.13
- version/linux kernel/2.6.17.2
- version/linux kernel/2.6.13.3
- version/linux kernel/2.6.11.8
- version/linux kernel/2.6.17.8
- version/linux kernel/2.6.14.4
- version/linux kernel/2.6.14
- version/linux kernel/2.6.17.4
- version/linux kernel/2.6.16.18
- version/linux kernel/2.6.17.14
- version/linux kernel/2.6.10
- version/linux kernel/2.6.14.3
- version/linux kernel/2.6.11.6
- version/linux kernel/2.6.11.11
- version/linux kernel/2.6.16.13
- version/linux kernel/2.6.3
- version/linux kernel/2.6.16.4
- version/linux kernel/2.6.17.3
- version/linux kernel/2.6.4
- version/linux kernel/2.6.16.15
- version/linux kernel/2.6.15.6
- version/linux kernel/2.6.15.1
- version/linux kernel/2.6.11.5
- version/linux kernel/2.6.16.1
- version/linux kernel/2.6.2
- version/linux kernel/2.6.14.5
- version/linux kernel/2.6.13.2
- version/linux kernel/2.6.17.5
- version/linux kernel/2.6.16.32
- version/linux kernel/2.6.13.5
- version/linux kernel/2.6.17
- version/linux kernel/2.6.16.11
- version/linux kernel/2.6.16.14
- version/linux kernel/2.6.16.25
- version/linux kernel/2.6.16.21
- version/linux kernel/2.6.16.33
- version/linux kernel/2.6.8
- version/linux kernel/2.6.16.28
- version/linux kernel/2.6.17.10
- version/linux kernel/2.6.14.1
- version/linux kernel/2.6.16.23
- version/linux kernel/2.6.12.5
- version/linux kernel/2.6.15.7
- version/linux kernel/2.6.16.3
- version/linux kernel/2.6.14.6
- version/linux kernel/2.6.12.1
- version/linux kernel/2.6.11.9
- version/linux kernel/2.6.17.1
- version/linux kernel/2.6.0
- version/linux kernel/2.6.13.4
- version/linux kernel/2.6.12.2
- version/linux kernel/2.6.16.31
- version/linux kernel/2.6.16.26
- version/linux kernel/2.6.16.29
- version/linux kernel/2.6.16
- version/linux kernel/2.6.15.2
- version/linux kernel/2.6.16.22
- version/linux kernel/2.6.17.11
- version/linux kernel/2.6.16.10
- version/linux kernel/2.6.12.4
- version/linux kernel/2.6.11.3
- version/linux kernel/2.6.16.24
- version/linux kernel/2.6.12.3
- version/linux kernel/2.6.7
- version/linux kernel/2.6.16.30
- version/linux kernel/2.6.15.4
- version/linux kernel/2.6.16.17
- version/linux kernel/2.6.16.12
- version/linux kernel/2.6.9-2.6.20
- version/linux kernel/2.6.16.27
- version/linux kernel/2.6.12.6
- version/linux kernel/2.6.17.7
- version/linux kernel/2.6.11.7
- version/linux kernel/2.6.16.2
- version/linux kernel/2.6.15
- version/linux kernel/2.6.14.2
- version/linux kernel/2.6.18
- version/linux kernel/2.6.17.6
- version/linux kernel/2.6.16.7
- version/linux kernel/2.6.17.13
- version/linux kernel/2.6.8.1
- version/linux kernel/2.6.16.5
- version/linux kernel/2.6.11.4
- version/linux kernel/2.6.16.19
- version/linux kernel/2.6.11.12
- version/linux kernel/2.6.16.20
- version/linux kernel/2.6.15.5
- version/linux kernel/2.6.11.1
- version/linux kernel/2.6.13.1
- version/linux kernel/2.6.6
- version/linux kernel/2.6.12