CVE-2016-7938

The ZeroMQ parser in tcpdump before 4.9.0 has an integer overflow in print-zeromq.c:zmtp1_print_frame()

published January 28, 2017

CVSS
โ€”
EPSS
3%
Percentile
87.7
In the wild
Unconfirmed
What it is

โš ๏ธ An integer overflow hides where you least expect it! The ZeroMQ parser in tcpdump could potentially allow unexpected behavior due to a sneaky flaw in print-zeromq.c. ๐Ÿ” Think of it like a conveyor belt in a factory that miscalculates the number of items to produce โ€” too many items might jam the system or cause chaos in the assembly line, leading to breakdowns and inefficiencies. If exploited, this overflow could lead to unpredictable crashes or abnormal behavior in tcpdump, which is no small issue for systems relying on packet analysis and network monitoring. While there's no known exploit yet, the consequences could disrupt critical operations. Yikes!

Put simply

Think of it like a conveyor belt in a factory that miscalculates the number of items to produce โ€” too many items might jam the system or cause chaos in the assembly line, leading to breakdowns and inefficiencies. The vulnerability arises from an integer overflow in the ZeroMQ parser when parsing frames in tcpdump prior to version 4.9.0, potentially leading to incorrect memory allocation or other unforeseen issues.

What to do

If exploited, this overflow could lead to unpredictable crashes or abnormal behavior in tcpdump, which is no small issue for systems relying on packet analysis and network monitoring. While there's no known exploit yet, the consequences could disrupt critical operations. Yikes! To safeguard your systems, update tcpdump to version 4.9.0 or later. Regularly audit your network tools for vulnerabilities and stay updated with patches to keep your environment secure. You've got this! By taking these steps, you'll keep your systems running smoothly and securely. ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03143 ยท 87.7th percentile
Published
2017-01-28T01:33Z
EPSS history
Timeline
  • 28 JAN 01:33Z
    The ZeroMQ parser in tcpdump before 4.9.0 has an integer overflow in print-zeromq.c:zmtp1_print_frame()
    cvelistv5