Description
Buffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before 0.8.0 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via vectors involving large management addresses and TLV boundaries.
References (8)
Core 8
Core References
Mailing List, Patch, Third Party Advisory x_refsource_misc
http://www.openwall.com/lists/oss-security/2015/10/16/2
Mailing List, Patch, Third Party Advisory x_refsource_misc
http://www.openwall.com/lists/oss-security/2015/10/30/2
Patch, Third Party Advisory x_refsource_misc
https://github.com/vincentbernat/lldpd/commit/dd4f16e7e816f2165fba76e3d162cd8d2978dcb2
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2021/dsa-4836
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/
Vendor Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf
Third Party Advisory, US Government Resource x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07
Scores
CVSS v3
9.8
EPSS
0.0420
EPSS Percentile
88.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-120
Status
published
Products (4)
debian/debian_linux
9.0
debian/debian_linux
10.0
fedoraproject/fedora
33
lldpd_project/lldpd
0.5.6 - 0.8.0
Published
Jan 28, 2020
Tracked Since
Feb 18, 2026