CVE-2016-5116

gd_xbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers to obtain…

published August 7, 2016

CVSS
—
EPSS
4%
Percentile
89.9
In the wild
Unconfirmed
What it is

⚠️ A long file name could be your worst enemy! In the GD Graphics Library, before version 2.2.0, this sneaky vulnerability lets attackers peek into sensitive process memory or crash your application. 💥 Think of it like a restaurant that allows customers to write any name they want on their reservation. If someone writes a ridiculously long name, the staff gets confused, leading to a chaotic scene! In this case, the long name can trick the server into spilling sensitive information or crashing altogether. What’s at stake? An attacker could potentially access sensitive data stored in memory, or even crash the application entirely—talk about a dinner party gone wrong! This could lead to service disruptions and loss of user trust, even if it’s not known to be actively exploited.

Put simply

Think of it like a restaurant that allows customers to write any name they want on their reservation. If someone writes a ridiculously long name, the staff gets confused, leading to a chaotic scene! In this case, the long name can trick the server into spilling sensitive information or crashing altogether. The vulnerability in gd_xbm.c allows context-dependent attackers to exploit stack-based buffer under-reads through long file names, creating a potential information leak or denial of service.

What to do

What’s at stake? An attacker could potentially access sensitive data stored in memory, or even crash the application entirely—talk about a dinner party gone wrong! This could lead to service disruptions and loss of user trust, even if it’s not known to be actively exploited. To protect yourself, upgrade to GD Graphics Library version 2.2.0 or later. Additionally, review your custom PHP configurations to ensure they aren’t exposing you to similar risks. Regularly check for updates to stay ahead of potential threats! You've got this! 🦸‍♂️ Patch that vulnerability, and keep your applications running smoothly!

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03809 · 89.9th percentile
Published
2016-08-07T10:00Z
EPSS history
Timeline
  • 07 AUG 10:00Z
    gd_xbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers to obtain…
    cvelistv5