gnu glibc CVE-2021-3326 vulnerability in GNU and Other Products
Published on January 27, 2021

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The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2021-3326 is exploitable with network access, and does not require authorization privileges or user interaction. 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:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is an assertion failure Vulnerability?

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

CVE-2021-3326 has been classified to as an assertion failure vulnerability or weakness.


Products Associated with CVE-2021-3326

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-3326 are published in these products:

GNU Glibc
 
NetApp E Series Santricity Os Controller
 
NetApp Ontap Select Deploy Administration Utility
 
Canonical Ubuntu Linux
 
Oracle Communications Cloud Native Core Security Edge Protection Proxy
 
Debian Linux
 

Exploit Probability

EPSS
0.22%
Percentile
44.95%

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.