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Category:   Application (Generic)  >   Vim Vendors:   Vim.org
Vim Buffer Overflows in Processing Undo Files Let Local Users Execute Arbitrary Code
SecurityTracker Alert ID:  1037949
SecurityTracker URL:  http://securitytracker.com/id/1037949
CVE Reference:   CVE-2017-6349, CVE-2017-6350   (Links to External Site)
Date:  Mar 3 2017
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Vim. A local user can cause arbitrary code to be executed on the target user's system.

A local user can create a specially crafted undo file that, when loaded by the target user, will trigger a buffer overflow and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The u_read_undo() function is affected [CVE-2017-6349].

The unserialize_uep() function is affected [CVE-2017-6350].

Hao Sun (shqking) reported these vulnerabilities.

Impact:   A local user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a source code fix, available at:

https://github.com/vim/vim/commit/0c8485f0e4931463c0f7986e1ea84a7d79f10c75
https://github.com/vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c

Vendor URL:  www.vim.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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