CVE-2021-3881CWE-125

Out-of-bounds Read in bfabiszewski/libmobi

High · published October 15, 2021

CVSS v3.0
7.1
EPSS
1%
Percentile
66.8
In the wild
Unconfirmed
What it is

⚡ Beware of the out-of-bounds read lurking in libmobi! This vulnerability could let an attacker access data they shouldn't—like sneaking a peek at your diary! 📖 Think of it like a librarian who accidentally checks out a book from the wrong shelf, reading snippets of stories that were never meant for their eyes. That's what happens with this out-of-bounds read; it opens the door to sensitive information unintentionally. An attacker could exploit this vulnerability to read data outside of the allocated memory. This could lead to unauthorized information disclosure, potentially exposing sensitive user data. It’s serious enough to raise your eyebrows, but thankfully, it hasn't been widely exploited yet!

Put simply

Think of it like a librarian who accidentally checks out a book from the wrong shelf, reading snippets of stories that were never meant for their eyes. That's what happens with this out-of-bounds read; it opens the door to sensitive information unintentionally. CVE-2021-3881 is an out-of-bounds read vulnerability in libmobi that occurs when the software tries to access memory that is outside the bounds of allocated memory areas. This could lead to revealing sensitive information or crash the application.

What to do

An attacker could exploit this vulnerability to read data outside of the allocated memory. This could lead to unauthorized information disclosure, potentially exposing sensitive user data. It’s serious enough to raise your eyebrows, but thankfully, it hasn't been widely exploited yet! Update libmobi to the latest patched version to mitigate this risk. Conduct a thorough audit of your application to ensure that no other components are affected by similar memory management issues. Regularly monitor for updates and apply them promptly! You've got this! Stay vigilant and proactive, and your systems will stay strong! 🛡️

The record
Technical detail
CVSS v3.0
7.1 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.01157 · 66.8th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2021-10-15T13:40Z
EPSS history
Timeline
  • 15 OCT 13:40Z
    Out-of-bounds Read in bfabiszewski/libmobi
    cvelistv5