CVE-2021-44847
Publication date 13 December 2021
Last updated 24 July 2024
Ubuntu priority
A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libtoxcore | 24.04 LTS noble |
Fixed 0.2.13-1
|
| 22.04 LTS jammy |
Fixed 0.2.13-1
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Ignored | |
| 14.04 LTS trusty | Ignored |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.8 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |