Description
The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlc_print().
References (8)
Core 8
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201709-23
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/the-tcpdump-group/tcpdump/commit/a1eefe986065846b6c69dbc09afd9fa1a02c4a3d
Third Party Advisory x_refsource_confirm
https://support.apple.com/HT208221
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3971
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039307
Vendor Advisory x_refsource_confirm
http://www.tcpdump.org/tcpdump-changes.txt
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/the-tcpdump-group/tcpdump/commit/866c60236c41cea1e1654c8a071897292f64be49
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHEA-2018:0705
Scores
CVSS v3
9.8
EPSS
0.0137
EPSS Percentile
80.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-125
Status
published
Products (4)
debian/debian_linux
8.0
debian/debian_linux
9.0
debian/debian_linux
10.0
tcpdump/tcpdump
< 4.9.1
Published
Sep 14, 2017
Tracked Since
Feb 18, 2026