CVE-2018-18313

Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory

published December 7, 2018

CVSS
—
EPSS
10%
Percentile
95.4
In the wild
Unconfirmed
What it is

⚠️ A crafty regex can peek where it shouldn’t! This buffer over-read vulnerability in Perl before version 5.26.3 could expose sensitive data from your process memory, just like a waiter sneaking a glance at a private order. 📜 Think of it like a restaurant where one sneaky customer tries to snoop on another's order by peering over the counter—if the waiter isn't careful, secrets (or data) could slip out! An attacker could exploit this vulnerability to retrieve sensitive information stored in memory, potentially leading to unauthorized access to private data. While there are no known exploits currently, the implications of exposing sensitive information could be quite serious, especially in a production environment.

Put simply

Think of it like a restaurant where one sneaky customer tries to snoop on another's order by peering over the counter—if the waiter isn't careful, secrets (or data) could slip out! This vulnerability stems from a buffer over-read triggered by a specially crafted regular expression, allowing attackers to access parts of the process memory that they shouldn't normally see.

What to do

An attacker could exploit this vulnerability to retrieve sensitive information stored in memory, potentially leading to unauthorized access to private data. While there are no known exploits currently, the implications of exposing sensitive information could be quite serious, especially in a production environment. Upgrade Perl to version 5.26.3 or later to mitigate this risk. Conduct a thorough review of any regular expressions used in your applications to ensure they are properly sanitized. Regularly monitor dependencies to keep them up to date. You've got this! With these steps, you can fortify your application and keep it secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.09524 · 95.4th percentile
Published
2018-12-07T21:00Z
EPSS history
Timeline
  • 07 DEC 21:00Z
    Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory
    cvelistv5