// For flags

CVE-2018-0487

Ubuntu Security Notice USN-4267-1

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.

ARM mbed TLS, en versiones anteriores a la 1.3.22, a la 2.1.10 y a la 2.7.0, permite que atacantes remotos ejecuten código arbitrario o provoquen una denegación de servicio (desbordamiento de búfer) mediante una cadena de certificados manipulada que se gestiona de manera incorrecta durante la verificación de firmas RSASSA-PSS en una sesión TLS o DTLS.

It was discovered that mbedtls has a bounds-check bypass through an integer overflow that can be used by an attacked to execute arbitrary code or cause a denial of service. It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a denial of service via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-11-27 CVE Reserved
  • 2018-02-13 CVE Published
  • 2024-08-05 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Arm
Search vendor "Arm"
Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
>= 1.3.8 < 1.3.22
Search vendor "Arm" for product "Mbed Tls" and version " >= 1.3.8 < 1.3.22"
-
Affected
Arm
Search vendor "Arm"
Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
>= 2.1.0 < 2.1.10
Search vendor "Arm" for product "Mbed Tls" and version " >= 2.1.0 < 2.1.10"
-
Affected
Arm
Search vendor "Arm"
Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
>= 2.2.0 < 2.7.0
Search vendor "Arm" for product "Mbed Tls" and version " >= 2.2.0 < 2.7.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
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