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CVE-2006-6056

15
FAUCET Score

CVE-2006-6056 describes a denial-of-service vulnerability in Linux kernel versions 2.6.x up to 2.6.18, specifically when SELinux hooks are enabled. A local attacker can trigger a NULL pointer dereference in the superblock_doinit function by providing a malformed file stream, such as an HFS filesystem image, leading to a system crash. The vulnerability has a CVSS score of 4.9, indicating a low severity, as it requires local access and results only in a denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
2.6.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*
2.6.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

AV:L/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 77th percentile among its peer group of 3,052 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-42.0.8.EL
View patch

Vendor Advisories (1)

redhatCVE-2006-6056Low

security flaw

Nov 14, 2006

References

projects.info-pull.com / mokb/MOKB-14-11-2006.html
ExploitVendor Advisory
rhn.redhat.com / errata/RHSA-2007-0014.html
secunia.com / advisories/22887
secunia.com / advisories/23474
secunia.com / advisories/23997
secunia.com / advisories/24098
secunia.com / advisories/24206
secunia.com / advisories/24482
secunia.com / advisories/24777
secunia.com / advisories/25691
secunia.com / advisories/25714
exchange.xforce.ibmcloud.com / vulnerabilities/30278
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9949
support.avaya.com / elmodocs2/security/ASA-2007-063.htm
debian.org / security/2007/dsa-1304
mandriva.com / security/advisories
mandriva.com / security/advisories
novell.com / linux/security/advisories/2006_79_kernel.html
securityfocus.com / archive/1/471457
ubuntu.com / usn/usn-416-1