CVE-2023-47360 - Integer Underflow (Wrap or Wraparound)

Severity

75%

Complexity

39%

Confidentiality

60%

Videolan VLC prior to version 3.0.20 contains an Integer underflow that leads to an incorrect packet length.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Demo Examples

Integer Underflow (Wrap or Wraparound)

CWE-191

The following example subtracts from a 32 bit signed integer.


               
}
return 0;

The example has an integer underflow. The value of i is already at the lowest negative value possible, so after subtracting 1, the new value of i is 2147483647.

Overview

First reported 1 year ago

2023-11-07 16:15:00

Last updated 1 year ago

2023-12-01 02:15:00

Affected Software

VideoLAN VLC Media Player

References

https://0xariana.github.io/blog/real_bugs/vlc/mms

https://0xariana.github.io/blog/real_bugs/vlc/mms

Exploit, Third Party Advisory

[debian-lts-announce] 20231130 [SECURITY] [DLA 3679-1] vlc security update

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