CVE-2017-13029

The PPP parser in tcpdump before 4.9.2 has a buffer over-read in print-ppp.c:print_ccp_config_options()

published September 14, 2017

CVSS
โ€”
EPSS
3%
Percentile
88.8
In the wild
Unconfirmed
What it is

โš ๏ธ A sneaky buffer over-read just might be lurking in tcpdump's PPP parser! Before version 4.9.2, it's like reading an unfinished book โ€” you might get some details wrong without the last chapter. ๐Ÿ“– Imagine a librarian trying to catalog books but accidentally reading the index of an unfinished manuscript. The missing pages could lead to incorrect information being shared with patrons, just like how this buffer over-read could lead to unexpected behavior in network traffic analysis. While there's no known exploitation, the potential for misinterpreting or mishandling packet data could result in inaccuracies during network analysis. An attacker could exploit this to gain misleading insights or potentially craft malicious packets that the program mishandles, leading to unexpected results or crashes.

Put simply

Imagine a librarian trying to catalog books but accidentally reading the index of an unfinished manuscript. The missing pages could lead to incorrect information being shared with patrons, just like how this buffer over-read could lead to unexpected behavior in network traffic analysis. This vulnerability in tcpdump's PPP parser occurs due to a buffer over-read in the print-ppp.c file, which fetches more data than available, potentially causing the application to behave unpredictably.

What to do

While there's no known exploitation, the potential for misinterpreting or mishandling packet data could result in inaccuracies during network analysis. An attacker could exploit this to gain misleading insights or potentially craft malicious packets that the program mishandles, leading to unexpected results or crashes. To protect your network analysis, upgrade tcpdump to version 4.9.2 or later. Regularly audit your applications to ensure you're using the latest versions to avoid vulnerabilities like this one. โšก You've got this! Stay vigilant and keep your tools updated for a secure network environment! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03428 ยท 88.8th percentile
Published
2017-09-14T06:00Z
EPSS history
Timeline
  • 14 SEP 06:00Z
    The PPP parser in tcpdump before 4.9.2 has a buffer over-read in print-ppp.c:print_ccp_config_options()
    cvelistv5