// For flags

CVE-2019-11756

nss: Use-after-free in sftk_FreeSession due to improper refcounting

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.

Un recuento de referencias inapropiado de los objetos de sesión de token programable podría causar un uso de la memoria previamente liberada y un bloqueo (probablemente limitado a una denegación de servicio). Esta vulnerabilidad afecta a Firefox versiones anteriores a la verisón 71.

A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS.

Red Hat OpenShift Do is a simple CLI tool for developers to create, build, and deploy applications on OpenShift. The odo tool is completely client-based and requires no server within the OpenShift cluster for deployment. It detects changes to local code and deploys it to the cluster automatically, giving instant feedback to validate changes in real-time. It supports multiple programming languages and frameworks. Red Hat OpenShift Do openshift/odo-init-image 1.1.3 is a container image that is used as part of the InitContainer setup that provisions odo components.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-05-03 CVE Reserved
  • 2020-01-08 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Firefox
Search vendor "Mozilla" for product "Firefox"
 < 71.0
Search vendor "Mozilla" for product "Firefox" and version " < 71.0"
-
Affected