CVE-2020-27678

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022

published October 23, 2020

CVSS
—
EPSS
1%
Percentile
73.0
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow lurks in illumos, making it a potential tripwire for your security! 💥 Think of it as a hotel reservation system that fails to check the maximum room capacity. If too many guests try to check in, the system could crash, leaving everyone in the lobby in chaos! While there's no known exploitation at this time, the risk of a buffer overflow in the authentication process could allow an attacker to manipulate memory, leading to unexpected behavior or service interruptions. This could create a nightmare scenario where legitimate users find themselves locked out while attackers waltz right in!

Put simply

Think of it as a hotel reservation system that fails to check the maximum room capacity. If too many guests try to check in, the system could crash, leaving everyone in the lobby in chaos! The vulnerability lies in the `parse_user_name` function of `libpam`, where improper handling of input could lead to a buffer overflow, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

What to do

While there's no known exploitation at this time, the risk of a buffer overflow in the authentication process could allow an attacker to manipulate memory, leading to unexpected behavior or service interruptions. This could create a nightmare scenario where legitimate users find themselves locked out while attackers waltz right in! To safeguard your systems, upgrade to the latest version of illumos after October 22, 2020, specifically r151030by, r151032ay, or r151034y. Regularly audit your PAM configurations and ensure you’re monitoring for unusual behavior. 🛡️ You've got this! Stay vigilant, follow the steps to patch up, and keep your systems secure! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01441 · 73.0th percentile
Published
2020-10-23T20:25Z
EPSS history
Timeline
  • 23 OCT 20:25Z
    An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022
    cvelistv5