CVE-2011-3268

Buffer overflow in the crypt function in PHP before 5.3.7 allows context-dependent attackers to have an unspecified impact via a long salt argument, a…

published August 25, 2011

CVSS
—
EPSS
6%
Percentile
93.0
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow in PHP could let attackers wiggle in with a long salt argument! This issue impacts versions before 5.3.7. 🔥 Think of it like a bag of flour — if you pack too much in, it spills all over the counter, creating a mess. In this case, a long salt argument can cause an overflow, disrupting the function's operation like flour scattering everywhere. If exploited, this vulnerability could lead to unexpected behavior in your PHP applications, potentially allowing attackers to manipulate or crash the crypt function. This can cause significant disruptions, especially if your application relies on password hashing or encryption for security.

Put simply

Think of it like a bag of flour — if you pack too much in, it spills all over the counter, creating a mess. In this case, a long salt argument can cause an overflow, disrupting the function's operation like flour scattering everywhere. This buffer overflow vulnerability in the crypt function allows context-dependent attackers to exploit a long salt argument, leading to unpredictable behavior and possibly crashing the function.

What to do

If exploited, this vulnerability could lead to unexpected behavior in your PHP applications, potentially allowing attackers to manipulate or crash the crypt function. This can cause significant disruptions, especially if your application relies on password hashing or encryption for security. To address this vulnerability, upgrade PHP to version 5.3.7 or later, where this issue is resolved. Additionally, review your applications for any places where salt values might exceed safe limits and implement checks to ensure proper lengths. You've got this! By patching and reviewing your code, you'll keep your applications secure and running smoothly. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05719 · 93.0th percentile
Published
2011-08-25T18:00Z
EPSS history
Timeline
  • 25 AUG 18:00Z
    Buffer overflow in the crypt function in PHP before 5.3.7 allows context-dependent attackers to have an unspecified impact via a long salt argument, a…
    cvelistv5