CVE-2006-5173: n/a vulnerability

CVE-2006-5173: Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when crea...

Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.

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

Security readout for executives and security teams

This old Linux kernel flaw lets a local process influence CPU flag handling so other processes can crash. The described impact is denial of service through process crashes, not remote takeover. Business urgency depends on whether any legacy Linux systems still run affected kernels. Likely exposure is legacy Linux systems running affected kernel builds from the 2006-2007 advisory period. Internet-facing exposure is not indicated; the attacker needs local user-level execution on the host. Treat this as a legacy hygiene issue unless vulnerable shared Linux hosts still exist. It is not presented as remotely exploitable, but it can disrupt workloads where untrusted users or code run locally. Mitigation focus: Identify Linux hosts running unmaintained or 2.6-era kernels.; Check SUSE, Ubuntu, Mandriva, or current vendor guidance for CVE-2006-5173 coverage.; Apply vendor kernel updates that include the referenced upstream fix..

Prepared: Jun 29, 2026, 09:52 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 17, 2006, 22:00 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

1Source 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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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