CVE-2011-5321

Medium

The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.

Package Linux Kernel
Published 2016-05-02
Last modified 2026-05-06
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

6 total
Showing 5 of 6 references View all on NVD

Frequently asked questions

  • What is CVE-2011-5321?

    CVE-2011-5321 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2011-5321 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2011-5321?

    CVE-2011-5321 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2011-5321?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2011-5321 patch availability.

  • Is CVE-2011-5321 actively exploited?

    No. CVE-2011-5321 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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