CVE-2017-13020

The VTP parser in tcpdump before 4.9.2 has a buffer over-read in print-vtp.c:vtp_print()

Critical · published September 14, 2017

CVSS v3.1
9.8
EPSS
3%
Percentile
88.4
In the wild
Unconfirmed
What it is

🚨 A sneaky buffer over-read in tcpdump could let attackers peek at memory they shouldn't! 😱 Think of it like a waiter giving out secrets about other tables' orders when they should just focus on yours — this bug allows tcpdump to expose sensitive data from its memory without proper checks. If exploited, an attacker could potentially read sensitive information from the memory of the application, leading to unintended data exposure and possibly opening the door for further attacks. The stakes are high, with critical data at risk and the potential for significant fallout.

Put simply

Think of it like a waiter giving out secrets about other tables' orders when they should just focus on yours — this bug allows tcpdump to expose sensitive data from its memory without proper checks. The vulnerability in tcpdump's VTP parser allows for a buffer over-read in the function vtp_print(), which can lead to unintended memory access and disclosure of sensitive information.

What to do

If exploited, an attacker could potentially read sensitive information from the memory of the application, leading to unintended data exposure and possibly opening the door for further attacks. The stakes are high, with critical data at risk and the potential for significant fallout. To protect your systems, immediately upgrade tcpdump to version 4.9.2 or later. Regularly review your network monitoring tools and implement stricter access controls to mitigate risks of memory exposure. You've got this! With a quick update, you can safeguard your network and keep those secret orders under wraps! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.03284 · 88.4th percentile
Published
2017-09-14T06:00Z
EPSS history
Timeline
  • 14 SEP 06:00Z
    The VTP parser in tcpdump before 4.9.2 has a buffer over-read in print-vtp.c:vtp_print()
    cvelistv5