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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Buffer Overflow in tpacket_rcv() Lets Local Users Cause Denial of Service Conditions
SecurityTracker Alert ID:  1039371
SecurityTracker URL:  http://securitytracker.com/id/1039371
CVE Reference:   CVE-2017-14497   (Links to External Site)
Date:  Sep 18 2017
Impact:   Denial of service via local system, Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux kernel. A local user can cause denial of service conditions on the target system.

A local user can trigger a buffer overflow in the tpacket_rcv() function in 'net/packet/af_packet.c' to write up to 10 bytes to kernel memory outside of the allocated kernel buffer and corrupt memory or XFS disk contents.

Impact:   A local user can cause denial of service conditions on the target system.
Solution:   The vendor has issued a source code fix, available at:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=edbd58be15a957f6a760c4a514cd475217eb97fd

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Boundary error

Message History:   None.


 Source Message Contents



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