7.2
CVSSv2

CVE-2011-0521

Published: 02/02/2011 Updated: 13/02/2023
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
VMScore: 642
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel prior to 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

Vulnerability Trend

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linux linux kernel 2.6.38

linux linux kernel

Vendor Advisories

Multiple flaws in the Linux kernel ...
Multiple kernel vulnerabilities have been fixed ...
Multiple kernel flaws have been fixed ...
An attacker could send crafted input to the kernel and cause it to crash ...
Multiple flaws fixed in the Linux kernel ...
Multiple kernel vulnerabilities have been fixed ...
Multiple kernel flaws have been fixed ...

Exploits

Ubuntu Security Notice 1202-1 - Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly A local user could exploit this to read kernel stack memory, leading to a loss of privacy Brad Spengler discovered that stack memory for new a process was not correctly calculated A local attacker could exploit this to crash ...