CVE-2018-18408

A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1

published October 17, 2018

CVSS
—
EPSS
2%
Percentile
82.8
In the wild
Unconfirmed
What it is

⚠️ A sneaky use-after-free vulnerability lurks in the tcpbridge binary of Tcpreplay 4.3.0 beta1, waiting to trip you up! Think of it like trying to use a seat in a restaurant that's already been cleared away. The table's set, but if you sit down anyway, you're bound to cause a scene! This bug can lead to a dreaded denial of service, meaning your service could crash unexpectedly, disrupting operations. Although there might be unspecified impacts lurking, the main concern is having your system throw a tantrum when it shouldn't!

Put simply

Think of it like trying to use a seat in a restaurant that's already been cleared away. The table's set, but if you sit down anyway, you're bound to cause a scene! This use-after-free issue occurs in the post_args() function within tcpbridge.c, allowing an attacker to trigger a crash when the program tries to access memory that’s already been freed.

What to do

This bug can lead to a dreaded denial of service, meaning your service could crash unexpectedly, disrupting operations. Although there might be unspecified impacts lurking, the main concern is having your system throw a tantrum when it shouldn't! To remedy this, ensure you update Tcpreplay to the latest stable version, ideally beyond 4.3.0 beta1. It's also a good practice to monitor your usage patterns to detect any unusual disruptions. You've got this! With a little diligence and the right updates, you’ll keep your system running smoothly! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02254 · 82.8th percentile
Published
2018-10-17T04:00Z
EPSS history
Timeline
  • 17 OCT 04:00Z
    A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1
    cvelistv5