gnu gcc CVE-2022-27943 in GNU and Fedora Project Products
Published on March 26, 2022

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libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2022-27943 can be exploited with local system access, requires 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:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is a Stack Exhaustion Vulnerability?

The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.

CVE-2022-27943 has been classified to as a Stack Exhaustion vulnerability or weakness.


Products Associated with CVE-2022-27943

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GNU Gcc
 
Fedora Project Fedora
 

Exploit Probability

EPSS
0.91%
Percentile
58.67%

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.