CVE-2022-0982

Buffer Overflow via crafted client request in Accel-PPP v1.12

published March 16, 2022

CVSS
β€”
EPSS
1%
Percentile
68.8
In the wild
Unconfirmed
What it is

🚨 A crafty crafted command can bring down the server! The telnet_input_char function is vulnerable to memory corruption, where a malicious client can exploit the fixed buffer! πŸ”₯ Think of it like a restaurant where a customer can order as much food as they want without limits β€” if the kitchen doesn't check portion sizes, they could end up with a chaotic kitchen and a massive food fight! πŸ”πŸ• This vulnerability could allow an attacker to crash the server or even execute arbitrary code, taking full control of the system. It's like giving someone backstage access without a ticket β€” they can wreak havoc!

Put simply

Think of it like a restaurant where a customer can order as much food as they want without limits β€” if the kitchen doesn't check portion sizes, they could end up with a chaotic kitchen and a massive food fight! πŸ”πŸ• The telnet_input_char function in the code blindly copies user input into a buffer without checking the length, making it susceptible to memory corruption when a malicious client connects and sends crafted requests.

What to do

This vulnerability could allow an attacker to crash the server or even execute arbitrary code, taking full control of the system. It's like giving someone backstage access without a ticket β€” they can wreak havoc! To protect your system, review the code and implement proper bounds checking when copying user input. Regular updates and patches to your telnet implementation can also help mitigate potential risks β€” don’t forget to check for server log anomalies! You've got this! By addressing this issue, you'll keep your server safe and sound! πŸ›‘οΈ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01235 Β· 68.8th percentile
Published
2022-03-16T14:04Z
EPSS history
Timeline
  • 16 MAR 14:04Z
    Buffer Overflow via crafted client request in Accel-PPP v1.12
    cvelistv5