The GetUpdateFile function in misc/update.c in the Updater in VideoLAN VLC media player before 2.1.6 performs an incorrect cast operation from a 64-bit integer to a 32-bit integer, which allows remote attackers to conduct buffer overflow attacks and execute arbitrary code via a crafted update status file, aka an "integer truncation" vulnerability.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://github.com/videolan/vlc/commit/fbe2837bc80f155c001781041a54c58b5524fc14 | third party advisory patch |
| http://openwall.com/lists/oss-security/2015/01/20/5 | third party advisory mailing list |
| https://www.videolan.org/security/sa1501.html | vendor advisory |