Vulnerability identifier: #VU95643

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2004-1056

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.

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.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel:

---

External links
http://secunia.com/advisories/17002
http://www.redhat.com/support/errata/RHSA-2005-092.html
http://www.redhat.com/support/errata/RHSA-2005-529.html
http://www.redhat.com/support/errata/RHSA-2005-551.html
http://www.redhat.com/support/errata/RHSA-2005-663.html
http://www.vupen.com/english/advisories/2005/1878
http://bugzilla.fedora.us/show_bug.cgi?id=2336
http://exchange.xforce.ibmcloud.com/vulnerabilities/15972
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9795
http://www.ubuntu.com/usn/usn-38-1/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.