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CVE-2011-5321

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Date: May 2, 2016

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.

Language: C

Severity Score

Related Resources (9)

https://access.redhat.com/security/cve/CVE-2011-5321
http://www.openwall.com/lists/oss-security/2015/03/13/17
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8358acaeffd8e0c551ddcc24d1206143376
https://nvd.nist.gov/vuln/detail/CVE-2011-5321
http://rhn.redhat.com/errata/RHSA-2015-1221.html
https://bugzilla.redhat.com/show_bug.cgi?id=1201887
https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d1206143376
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1
https://www.mend.io/vulnerability-database/CVE-2011-5321

Severity Score

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CVSS v3

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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