CVE-2017-11108

Publication date 8 July 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

tcpdump 4.9.0 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packet data. The crash occurs in the EXTRACT_16BITS function, called from the stp_print function for the Spanning Tree Protocol.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tcpdump	17.04 zesty	Fixed 4.9.2-0ubuntu0.17.04.2
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 4.9.2-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 4.9.2-0ubuntu0.14.04.1

Notes

sbeattie

reproducer in redhat bug report

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
tcpdump	Upstream: d9e65de

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H