Vulnerability Report

CVE-2020-8597

Title: pppd rhostname buffer overflow

Memory Corruption

Proof Of Concept

PoC Available for CVE-2020-8597

CWE Category CWE-120
Published Date Feb 03, 2020
Modified Date Jun 17, 2026
Exploit Status Available
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
19.58%

Vulnerability Summary

CVE-2020-8597: eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.

Impacted Vendors

W
wago 2
P
point-to-point_protocol_project 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00006.html http://packetstormsecurity.com/files/156662/pppd-2.4.8-Buffer-Overflow.html http://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html http://seclists.org/fulldisclosure/2020/Mar/6 https://access.redhat.com/errata/RHSA-2020:0630 https://access.redhat.com/errata/RHSA-2020:0631 https://access.redhat.com/errata/RHSA-2020:0633 https://access.redhat.com/errata/RHSA-2020:0634 https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426 https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136 https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNJNHWOO4XF73M2W56ILZUY4JQG3JXIR/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOFDAIOWSWPG732ASYUZNINMXDHY4APE/ https://security.gentoo.org/glsa/202003-19 https://security.netapp.com/advisory/ntap-20200313-0004/ https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04 https://usn.ubuntu.com/4288-1/ https://usn.ubuntu.com/4288-2/ https://www.debian.org/security/2020/dsa-4632 https://www.kb.cert.org/vuls/id/782301 https://www.synology.com/security/advisory/Synology_SA_20_02 http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00006.html http://packetstormsecurity.com/files/156662/pppd-2.4.8-Buffer-Overflow.html http://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html http://seclists.org/fulldisclosure/2020/Mar/6 https://access.redhat.com/errata/RHSA-2020:0630 https://access.redhat.com/errata/RHSA-2020:0631 https://access.redhat.com/errata/RHSA-2020:0633 https://access.redhat.com/errata/RHSA-2020:0634 https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426 https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136 https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNJNHWOO4XF73M2W56ILZUY4JQG3JXIR/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOFDAIOWSWPG732ASYUZNINMXDHY4APE/ https://security.gentoo.org/glsa/202003-19 https://security.netapp.com/advisory/ntap-20200313-0004/ https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04 https://usn.ubuntu.com/4288-1/ https://usn.ubuntu.com/4288-2/ https://www.debian.org/security/2020/dsa-4632 https://www.kb.cert.org/vuls/id/782301 https://www.synology.com/security/advisory/Synology_SA_20_02
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-8597 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/WinMin/CVE-2020-8597
View Code
GitHub https://github.com/lakwsh/CVE-2020-8597
View Code
GitHub https://github.com/dointisme/CVE-2020-8597
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.