lldpd: buffer overflow in the lldp_decode function in daemon/protocols/lldp.c
Published Jan 28, 2020
9.8
CRITICALCVSS 3.1
EPSS 5.49%
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.
Affected products
No data.
Configuration 1
- ≥ 0.5.6 · < 0.8.0
Configuration 2
- 9.0
- 10.0
Configuration 3
- 33
No data.
Fast Datapath for Red Hat Enterprise Linux 7
openvswitch-0:2.9.9-1.el7fdp
Fixed · RHSA-2021:2077
Fast Datapath for Red Hat Enterprise Linux 7
openvswitch2.11-0:2.11.3-77.el7fdp
Fixed · RHBA-2020:5307
Fast Datapath for Red Hat Enterprise Linux 7
openvswitch2.13-0:2.13.0-62.el7fdp
Fixed · RHBA-2020:5306
Fast Datapath for Red Hat Enterprise Linux 8
openvswitch2.11-0:2.11.3-74.el8fdp
Fixed · RHBA-2020:5311
Fast Datapath for Red Hat Enterprise Linux 8
openvswitch2.13-0:2.13.0-71.el8fdp
Fixed · RHBA-2020:5310
Red Hat OpenShift Container Platform 4.6
openvswitch2.13-0:2.13.0-72.el8fdp
Fixed · RHSA-2020:5615
Red Hat OpenStack Platform 10.0 (Newton)
openvswitch-0:2.9.9-1.el7fdp
Fixed · RHSA-2021:2205
Red Hat OpenStack Platform 13.0 (Queens)
openvswitch-selinux-extra-policy-0:1.0-17.el7fdp
Fixed · RHSA-2021:0931
Red Hat OpenStack Platform 13.0 (Queens)
openvswitch2.11-0:2.11.3-77.el7fdp
Fixed · RHSA-2021:0931
Red Hat OpenStack Platform 13.0 (Queens)
ovn2.11-0:2.11.1-57.el7fdp
Fixed · RHSA-2021:0931
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
openvswitch2.11-0:2.11.3-77.el7fdp
Fixed · RHSA-2021:0028
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
ovn2.11-0:2.11.1-56.el7fdp
Fixed · RHSA-2021:0028
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
redhat-virtualization-host-0:4.3.12-20201216.0.el7_9
Fixed · RHSA-2021:0028
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
redhat-virtualization-host-0:4.4.3-20201210.0.el8_3
Fixed · RHSA-2020:5611
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
rhvm-appliance-0:4.4-20210310.0.el8ev
Fixed · RHSA-2021:0988
Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS
openvswitch-0:2.9.9-1.el7fdp
Fixed · RHSA-2021:2077
Red Hat Virtualization Engine 4.3
openvswitch2.11-0:2.11.3-77.el7fdp
Fixed · RHSA-2021:0028
Red Hat Virtualization Engine 4.3
ovn2.11-0:2.11.1-56.el7fdp
Fixed · RHSA-2021:0028
Fast Datapath for RHEL 7
openvswitch2.10
Out of support scope
Fast Datapath for RHEL 7
openvswitch2.12
Out of support scope
Fast Datapath for RHEL 8
openvswitch2.12
Out of support scope
Red Hat Enterprise Linux 8
lldpd
Not affected
Red Hat Virtualization 4
rhv-openvswitch
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Fast Datapath for Red Hat Enterprise Linux 7 | openvswitch-0:2.9.9-1.el7fdp | Fixed | RHSA-2021:2077 |
| Fast Datapath for Red Hat Enterprise Linux 7 | openvswitch2.11-0:2.11.3-77.el7fdp | Fixed | RHBA-2020:5307 |
| Fast Datapath for Red Hat Enterprise Linux 7 | openvswitch2.13-0:2.13.0-62.el7fdp | Fixed | RHBA-2020:5306 |
| Fast Datapath for Red Hat Enterprise Linux 8 | openvswitch2.11-0:2.11.3-74.el8fdp | Fixed | RHBA-2020:5311 |
| Fast Datapath for Red Hat Enterprise Linux 8 | openvswitch2.13-0:2.13.0-71.el8fdp | Fixed | RHBA-2020:5310 |
| Red Hat OpenShift Container Platform 4.6 | openvswitch2.13-0:2.13.0-72.el8fdp | Fixed | RHSA-2020:5615 |
| Red Hat OpenStack Platform 10.0 (Newton) | openvswitch-0:2.9.9-1.el7fdp | Fixed | RHSA-2021:2205 |
| Red Hat OpenStack Platform 13.0 (Queens) | openvswitch-selinux-extra-policy-0:1.0-17.el7fdp | Fixed | RHSA-2021:0931 |
| Red Hat OpenStack Platform 13.0 (Queens) | openvswitch2.11-0:2.11.3-77.el7fdp | Fixed | RHSA-2021:0931 |
| Red Hat OpenStack Platform 13.0 (Queens) | ovn2.11-0:2.11.1-57.el7fdp | Fixed | RHSA-2021:0931 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | openvswitch2.11-0:2.11.3-77.el7fdp | Fixed | RHSA-2021:0028 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | ovn2.11-0:2.11.1-56.el7fdp | Fixed | RHSA-2021:0028 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | redhat-virtualization-host-0:4.3.12-20201216.0.el7_9 | Fixed | RHSA-2021:0028 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | redhat-virtualization-host-0:4.4.3-20201210.0.el8_3 | Fixed | RHSA-2020:5611 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | rhvm-appliance-0:4.4-20210310.0.el8ev | Fixed | RHSA-2021:0988 |
| Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS | openvswitch-0:2.9.9-1.el7fdp | Fixed | RHSA-2021:2077 |
| Red Hat Virtualization Engine 4.3 | openvswitch2.11-0:2.11.3-77.el7fdp | Fixed | RHSA-2021:0028 |
| Red Hat Virtualization Engine 4.3 | ovn2.11-0:2.11.1-56.el7fdp | Fixed | RHSA-2021:0028 |
| Fast Datapath for RHEL 7 | openvswitch2.10 | Out of support scope | n/a |
| Fast Datapath for RHEL 7 | openvswitch2.12 | Out of support scope | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.12 | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | lldpd | Not affected | n/a |
| Red Hat Virtualization 4 | rhv-openvswitch | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The lldpd package as shipped with Red Hat Enterprise Linux 8 is not affected by this flaw because it has already received the patch. The flaw affects versions before 0.8.0 and the shipped version is 1.0.1+. In addition, Red Hat Virtualization 4.3 manager appliance is out of support scope and therefore no fix for it will be delivered.
Red Hat mitigation
When the lldpd source is compiled with source fortification enabled, the flaw becomes unexploitable and will just cause a crash.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.49% (0.05493) | 92.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.45% (0.05448) | 91.68th | v5 (v2026.06.15) |
| May 30, 2026 | 5.56% (0.05555) | 90.42th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.15% (0.04146) | 87.58th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.80% (0.05801) | 83.76th | v4 (v2025.03.14) |
| Mar 19, 2025 | 4.15% (0.04146) | 87.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.32% (0.05319) | 89.33th | v4 (v2025.03.14) |
| Jan 21, 2025 | 5.89% (0.05889) | 93.37th | v3 (v2023.03.01) |
| Jan 4, 2024 | 4.38% (0.04377) | 91.50th | v3 (v2023.03.01) |
| Jul 8, 2023 | 4.08% (0.04077) | 90.90th | v3 (v2023.03.01) |
| May 8, 2023 | 4.26% (0.04265) | 90.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.13% (0.05131) | 91.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.72% (0.04717) | 89.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.72% (0.04717) | 88.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.72% (0.04717) | 74.51th | v2 (v2022.01.01) |
References (12)
- http://www.openwall.com/lists/oss-security/2015/10/16/2 x_refsource_MISCMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/10/30/2 x_refsource_MISCMailing ListPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-8011 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1896536 Issue Tracking
- https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf x_refsource_CONFIRM
- https://github.com/vincentbernat/lldpd/commit/dd4f16e7e816f2165fba76e3d162cd8d2978dcb2 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2015-8011
- https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07 x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2015-8011
- https://www.debian.org/security/2021/dsa-4836 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.