CVE-2020-27794CWE-415

A double free issue was discovered in radare2 in cmd_info.c:cmd_info()

published August 19, 2022

CVSS
—
EPSS
1%
Percentile
65.6
In the wild
Unconfirmed
What it is

⚠️ A double free issue could make your radare2 instance feel like it's playing a game of memory roulette! 🎰 Think of it like accidentally trying to return a library book that you've already checked out and returned — it can create confusion in the system, leading to unexpected results. In this case, the program's memory management is throwing a party with no bouncers! If an attacker takes advantage of this double free issue, they could modify memory locations that the program doesn't expect, leading to crashes or unpredictable behavior. This could disrupt your workflow or even lead to data corruption, which is definitely a headache no one wants!

Put simply

Think of it like accidentally trying to return a library book that you've already checked out and returned — it can create confusion in the system, leading to unexpected results. In this case, the program's memory management is throwing a party with no bouncers! This vulnerability in radare2 occurs in the cmd_info.c file within the cmd_info() function, allowing for potential exploitation through improper handling of memory allocation and deallocation.

What to do

If an attacker takes advantage of this double free issue, they could modify memory locations that the program doesn't expect, leading to crashes or unpredictable behavior. This could disrupt your workflow or even lead to data corruption, which is definitely a headache no one wants! To mitigate this issue, review your usage of radare2 and ensure you're on the latest version. If you’re running an affected version, consider applying a patch that addresses memory management flaws, and conduct thorough testing to check for any abnormalities. 🛡️ This vulnerability is fixable! Stay proactive, and you'll keep your systems running smoothly. You've got this! 💪

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01107 · 65.6th percentile
Weakness
CWE-415 · Double Free
Published
2022-08-19T22:44Z
EPSS history
Timeline
  • 19 AUG 22:44Z
    A double free issue was discovered in radare2 in cmd_info.c:cmd_info()
    cvelistv5