CVE-2024-55564

The POSIX::2008 package before 0.24 for Perl has a potential _execve50c env buffer overflow

Critical · published December 9, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

🚨 A single malformed environment variable can trigger a buffer overflow in the POSIX::2008 package for Perl, opening the door to critical vulnerabilities! 🔥 Think of this as a delivery truck that can't handle oversized packages; if you send in something too big, it spills out everywhere, causing chaos! Similarly, if an attacker can craft the right input, they can overwrite memory and execute arbitrary code. This could lead to a full system compromise! An attacker could execute malicious code simply by manipulating environment variables, potentially gaining control over your application or server. This vulnerability is not just a small leak; it’s a floodgate wide open for exploitation.

Put simply

Think of this as a delivery truck that can't handle oversized packages; if you send in something too big, it spills out everywhere, causing chaos! Similarly, if an attacker can craft the right input, they can overwrite memory and execute arbitrary code. The POSIX::2008 package before version 0.24 contains a potential buffer overflow vulnerability in the _execve50c function due to improper handling of environment variables, allowing attackers to overwrite the heap and execute arbitrary code.

What to do

This could lead to a full system compromise! An attacker could execute malicious code simply by manipulating environment variables, potentially gaining control over your application or server. This vulnerability is not just a small leak; it’s a floodgate wide open for exploitation. Upgrade to the latest version of the POSIX::2008 package (0.24 or later) immediately to close this vulnerability. Additionally, review your environment variable handling to ensure no other similar oversights exist. Regular security audits will help keep your codebase safe and sound! You've got this! Stay proactive, and with these steps, you'll lock this down tight! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00512 · 42.8th percentile
Published
2024-12-09T00:00Z
EPSS history
Timeline
  • 09 DEC 00:00Z
    The POSIX::2008 package before 0.24 for Perl has a potential _execve50c env buffer overflow
    cvelistv5