samba samba CVE-2019-19344 vulnerability in Samba and Other Products
Published on January 21, 2020

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There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.

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Vulnerability Analysis

CVE-2019-19344 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. 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:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
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-2019-19344 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2019-19344

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-19344 are published in these products:

Samba
 
Synology Directory Server
 
Synology Diskstation Manager
 
Synology Router Manager
 
Synology Skynas
 
Canonical Ubuntu Linux
 
OpenSuse Leap
 

Affected Versions

Red Hat samba:

Exploit Probability

EPSS
2.31%
Percentile
84.49%

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.