CVE-2018-11536

md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits

published May 29, 2018

CVSS
—
EPSS
2%
Percentile
76.8
In the wild
Unconfirmed
What it is

⚠️ A heap-based buffer overflow lurks in md4c before version 0.2.5, waiting for someone to misuse the split function — think of it like a faulty blender that explodes if you try to mix a too-large batch! Imagine loading a blender with way too many ingredients. If it goes above the limit, it can overflow and make quite a mess! Similarly, the md_split_simple_pairing_mark function doesn’t handle splits properly, which can lead to a heap overflow and unexpected behavior in the application. If exploited, an attacker could cause the application to crash or, in the worst-case scenario, execute arbitrary code. This could lead to unauthorized access or manipulation of sensitive data, creating chaos where there should be order.

Put simply

Imagine loading a blender with way too many ingredients. If it goes above the limit, it can overflow and make quite a mess! Similarly, the md_split_simple_pairing_mark function doesn’t handle splits properly, which can lead to a heap overflow and unexpected behavior in the application. The vulnerability stems from improper handling of splits in the md_split_simple_pairing_mark function, allowing a crafted input to exceed allocated memory limits, resulting in a heap-based buffer overflow.

What to do

If exploited, an attacker could cause the application to crash or, in the worst-case scenario, execute arbitrary code. This could lead to unauthorized access or manipulation of sensitive data, creating chaos where there should be order. Upgrade md4c to version 0.2.5 or later to eliminate this vulnerability. Additionally, review your code for similar buffer management practices to prevent further issues. Regularly check dependencies for updates! You've got this! With a quick update, you can keep your application safe from this overflow and ensure smooth operations. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01684 · 76.8th percentile
Published
2018-05-29T07:00Z
EPSS history
Timeline
  • 29 MAY 07:00Z
    md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits
    cvelistv5