gnu bash CVE-2016-9401 vulnerability in GNU and Other Products
Published on January 23, 2017

product logo product logo product logo
popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.

Vendor Advisory Vendor Advisory Vendor Advisory NVD

Vulnerability Analysis

CVE-2016-9401 can be exploited with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2016-9401. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2016-9401 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2016-9401

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2016-9401 are published in these products:

 
 
 
 
 
 
 
 

Exploit Probability

EPSS
0.06%
Percentile
18.89%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.