CVE-2020-8597
ppp: Buffer overflow in the eap_request and eap_response functions in eap.c
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
6
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
El archivo eap.c en pppd en ppp versiones 2.4.2 hasta 2.4.8, presenta un desbordamiento del búfer de rhostname en las funciones eap_request y eap_response.
A buffer overflow flaw was found in the ppp package in versions 2.4.2 through 2.4.8. The bounds check for the rhostname was improperly constructed in the EAP request and response functions which could allow a buffer overflow to occur. Data confidentiality and integrity, as well as system availability, are all at risk with this vulnerability.
USN-4288-1 fixed a vulnerability in ppp. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that ppp incorrectly handled certain rhostname values. A remote attacker could use this issue to cause ppp to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-02-03 CVE Reserved
- 2020-02-03 CVE Published
- 2020-03-05 First Exploit
- 2024-08-04 CVE Updated
- 2025-07-07 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (30)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/156662/pppd-2.4.8-Buffer-Overflow.html | Third Party Advisory |
|
| http://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html | Third Party Advisory |
|
| http://seclists.org/fulldisclosure/2020/Mar/6 | Mailing List |
|
| https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf | Third Party Advisory |
|
| https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20200313-0004 | Third Party Advisory |
|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04 | Third Party Advisory | |
| https://www.kb.cert.org/vuls/id/782301 | Third Party Advisory |
|
| https://www.synology.com/security/advisory/Synology_SA_20_02 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://packetstorm.news/files/id/156802 | 2020-03-18 | |
| https://packetstorm.news/files/id/156662 | 2020-03-09 | |
| https://github.com/dointisme/CVE-2020-8597 | 2020-03-05 | |
| https://github.com/WinMin/CVE-2020-8597 | 2020-03-12 | |
| https://github.com/lakwsh/CVE-2020-8597 | 2021-01-24 | |
| https://github.com/Dilan-Diaz/Point-to-Point-Protocol-Daemon-RCE-Vulnerability-CVE-2020-8597- | 2020-05-12 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Wago Search vendor "Wago" | Pfc Firmware Search vendor "Wago" for product "Pfc Firmware" | < 03.04.10\(16\) Search vendor "Wago" for product "Pfc Firmware" and version " < 03.04.10\(16\)" | - |
Affected
| in | Wago Search vendor "Wago" | Pfc100 Search vendor "Wago" for product "Pfc100" | - | - |
Safe
|
| Wago Search vendor "Wago" | Pfc Firmware Search vendor "Wago" for product "Pfc Firmware" | < 03.04.10\(16\) Search vendor "Wago" for product "Pfc Firmware" and version " < 03.04.10\(16\)" | - |
Affected
| in | Wago Search vendor "Wago" | Pfc200 Search vendor "Wago" for product "Pfc200" | - | - |
Safe
|
| Point-to-point Protocol Project Search vendor "Point-to-point Protocol Project" | Point-to-point Protocol Search vendor "Point-to-point Protocol Project" for product "Point-to-point Protocol" | >= 2.4.2 <= 2.4.8 Search vendor "Point-to-point Protocol Project" for product "Point-to-point Protocol" and version " >= 2.4.2 <= 2.4.8" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04" | - |
Affected
| ||||||