CVE-2021-3751CWE-787

Out-of-bounds Write in bfabiszewski/libmobi

Critical · published September 15, 2021

CVSS v3.0
9.6
EPSS
1%
Percentile
68.9
In the wild
Unconfirmed
What it is

🔥 A critical out-of-bounds write vulnerability in libmobi could let attackers wreak havoc in your system! Think of it like an assembly line that suddenly has too much material being fed into it — a jam could cause costly damage. This flaw allows an attacker to write data outside of intended memory boundaries, potentially corrupting data or crashing applications! If exploited, this vulnerability could lead to severe outcomes: an attacker could overwrite critical data, execute arbitrary code, or crash your application entirely. It's absolutely devastating to have your system compromised or even just unstable due to this flaw!

Put simply

Think of it like an assembly line that suddenly has too much material being fed into it — a jam could cause costly damage. This flaw allows an attacker to write data outside of intended memory boundaries, potentially corrupting data or crashing applications! CVE-2021-3751 allows for out-of-bounds write operations in libmobi, meaning it can manipulate memory in ways not intended by the developers, which could be exploited to execute arbitrary code or cause crashes.

What to do

If exploited, this vulnerability could lead to severe outcomes: an attacker could overwrite critical data, execute arbitrary code, or crash your application entirely. It's absolutely devastating to have your system compromised or even just unstable due to this flaw! Be sure to update libmobi to the fixed version as soon as possible to mitigate this risk. It's also crucial to review your usage of the library and ensure that you've implemented proper memory management practices. Don't forget to test your applications thoroughly after the upgrade! You've got this! By taking these steps, you’ll protect your applications and gain superhero status in the security realm! 🦸

The record
Technical detail
CVSS v3.0
9.6 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01237 · 68.9th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2021-09-15T06:40Z
EPSS history
Timeline
  • 15 SEP 06:40Z
    Out-of-bounds Write in bfabiszewski/libmobi
    cvelistv5