CVE-2018-6913

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count

published April 17, 2018

CVSS
—
EPSS
11%
Percentile
95.8
In the wild
Unconfirmed
What it is

⚠️ A sneaky heap-based buffer overflow in Perl could let attackers execute arbitrary code just by sending a surprisingly large item count! Think of this vulnerability like a waiter who keeps piling up too many plates on a flimsy table without checking if it can hold the weight. If overloaded, the table could collapse, spilling everything—like an attacker gaining full control over your system! If exploited, this could lead to arbitrary code execution, meaning attackers might run scripts or commands unchecked, potentially wreaking havoc on your application. While the risk isn't known to be actively exploited, the possibility remains alarming, as a successful attack could lead to data breaches, service disruptions, or complete system takeover. Yikes!

Put simply

Think of this vulnerability like a waiter who keeps piling up too many plates on a flimsy table without checking if it can hold the weight. If overloaded, the table could collapse, spilling everything—like an attacker gaining full control over your system! This heap-based buffer overflow vulnerability occurs in the 'pack' function of Perl versions before 5.26.2, allowing attackers to manipulate memory allocation if they input an excessively large item count.

What to do

If exploited, this could lead to arbitrary code execution, meaning attackers might run scripts or commands unchecked, potentially wreaking havoc on your application. While the risk isn't known to be actively exploited, the possibility remains alarming, as a successful attack could lead to data breaches, service disruptions, or complete system takeover. Yikes! To protect against this vulnerability, upgrade your Perl installation to version 5.26.2 or later. Regularly audit and maintain your software to ensure you’re not using any outdated components. Additionally, consider implementing safe coding practices to mitigate any unforeseen issues! You've got this! With these steps, you'll be one step closer to locking down your systems! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.10668 · 95.8th percentile
Published
2018-04-17T20:00Z
EPSS history
Timeline
  • 17 APR 20:00Z
    Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count
    cvelistv5