gnu glibc CVE-2020-29562 vulnerability in GNU and Other Products
Published on December 4, 2020

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The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Vendor Advisory Vendor Advisory NVD

Vulnerability Analysis

CVE-2020-29562 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of 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:
HIGH
Privileges Required:
LOW
User Interaction:
REQUIRED
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-2020-29562 has been classified to as an assertion failure vulnerability or weakness.


Products Associated with CVE-2020-29562

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2020-29562 are published in these products:

GNU Glibc
 
NetApp E Series Santricity Os Controller
 
Fedora Project Fedora
 
Canonical Ubuntu Linux
 

Exploit Probability

EPSS
0.05%
Percentile
16.16%

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.