Junos OS: MX Series and EX9200-15C: Stack-based buffer overflow in aftman
An Out-of-bounds Read vulnerability in the advanced forwarding management process aftman of Juniper Networks Junos OS on MX Series with MPC10E, MPC11, MX10K-LC9600 line cards, MX304, and EX9200-15C, may allow an attacker to exploit a stack-based buffer overflow, leading to a reboot of the FPC.
Through code review, it was determined that the interface definition code for aftman could read beyond a buffer boundary, leading to a stack-based buffer overflow.
This issue affects Junos OS on MX Series and EX9200-15C:
* from 21.2 before 21.2R3-S1,
* from 21.4 before 21.4R3,
* from 22.1 before 22.1R2,
* from 22.2 before 22.2R2;
This issue does not affect:
* versions of Junos OS prior to 20.3R1;
* any version of Junos OS 20.4.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-125 | CWE-125 Out-of-bounds Read |
| N/A | N/A | Denial of Service (DoS) |
Type: CWE
Description: CWE-125 Out-of-bounds Read
Type: N/A
CWE ID: N/A
Description: Denial of Service (DoS)
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 3.1 | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 4.0 | 8.2 | HIGH | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 8.2
Base severity: HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N