CVE-2006-5174: n/a vulnerability

CVE-2006-5174: The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390...

The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by "appending to a file from a bad address," which triggers a fault that prevents the unused memory from being cleared in the kernel buffer.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 19:41 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2006-5174 is an information disclosure flaw in older Linux 2.6 kernels on s390. A local program could cause the kernel to expose portions of kernel memory. The main business concern is legacy or embedded systems still running affected vendor kernels, not broad internet-facing compromise. Exposure appears limited to systems running affected Linux 2.6-era kernels on s390, including vendor-maintained distributions referenced by SUSE, Red Hat, Debian, and Avaya advisories. Modern standard builds are unlikely affected, but legacy mainframe Linux estates should verify patch status. Treat this as a legacy-platform cleanup issue unless affected s390 Linux systems still host untrusted users or shared workloads. It can leak sensitive kernel memory locally, but the provided evidence does not indicate remote attack or known active exploitation. Mitigation focus: Apply the relevant vendor kernel update from SUSE, Red Hat, Debian, or Avaya guidance.; Upgrade affected kernels to a fixed release or vendor backport containing the uaccess fix.; Prioritize systems that allow shell access or local workloads from untrusted users..

Prepared: Jun 29, 2026, 10:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 5, 2006, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:9885CVE reference · vdb-entry, signature
kernel-copyfromuser-information-disclosure(29378)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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