CVE-2017-13019

The PGM parser in tcpdump before 4.9.2 has a buffer over-read in print-pgm.c:pgm_print()

Critical · published September 14, 2017

CVSS v3.1
9.8
EPSS
4%
Percentile
91.4
In the wild
Unconfirmed
What it is

🚨 A buffer over-read in tcpdump could expose sensitive data before you even know it's happening! 🔥 Think of it like having a librarian who accidentally reads the wrong page of a book out loud, revealing secrets that shouldn't be shared. In this case, tcpdump's PGM parser is peeking into places it shouldn't, potentially leaking sensitive information. An attacker could exploit this flaw to read sensitive data from memory, leading to unauthorized access to confidential information. With a CVSS score of 9.8, this is a critical vulnerability that poses a serious risk to your systems, making it essential to take immediate action!

Put simply

Think of it like having a librarian who accidentally reads the wrong page of a book out loud, revealing secrets that shouldn't be shared. In this case, tcpdump's PGM parser is peeking into places it shouldn't, potentially leaking sensitive information. This vulnerability arises from a buffer over-read in the PGM parser found in tcpdump versions prior to 4.9.2, allowing attackers to retrieve data they shouldn't have access to. By mishandling memory, it opens the door to data exposure without proper authorization.

What to do

An attacker could exploit this flaw to read sensitive data from memory, leading to unauthorized access to confidential information. With a CVSS score of 9.8, this is a critical vulnerability that poses a serious risk to your systems, making it essential to take immediate action! Update tcpdump immediately to version 4.9.2 or later to close this security gap. Regularly audit your systems to ensure that vulnerable versions are not running, and consider implementing additional security measures to monitor memory accesses. 🛡️ You've got this! A timely update will keep your systems secure and your data protected! 💪✨

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
0.04494 · 91.4th percentile
Published
2017-09-14T06:00Z
EPSS history
Timeline
  • 14 SEP 06:00Z
    The PGM parser in tcpdump before 4.9.2 has a buffer over-read in print-pgm.c:pgm_print()
    cvelistv5