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CVE-2017-11108

Published: 8 July 2017

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.

Notes

AuthorNote
sbeattie
reproducer in redhat bug report

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
tcpdump
Launchpad, Ubuntu, Debian
trusty
Released (4.9.2-0ubuntu0.14.04.1)
upstream
Released (4.9.1)
xenial
Released (4.9.2-0ubuntu0.16.04.1)
yakkety Ignored
(end of life)
zesty
Released (4.9.2-0ubuntu0.17.04.2)
Patches:
upstream: https://github.com/the-tcpdump-group/tcpdump/commit/d9e65de3d94698ec90dbca42962a30dd2f0680e1

Severity score breakdown

Parameter Value
Base score 7.5
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