CVE-2004-1056

CVE-2004-1056 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Direct Rendering Manager (DRM) driver in Linux kernel 2.6 does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) and possibly modify the video output.

Frequently asked questions

What is CVE-2004-1056?
Direct Rendering Manager (DRM) driver in Linux kernel 2.6 does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) and possibly modify the video output.
How severe is CVE-2004-1056?
CVE-2004-1056 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2004-1056 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1056?
CVE-2004-1056 primarily affects Linux Linux Kernel. In total, 32 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1056?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1056 published?
CVE-2004-1056 was published on 2005-01-10 and last updated on 2026-06-16.

References

Affected products (32)

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