CVE Vulnerabilities

CVE-2021-44497

Use After Free

Published: Apr 15, 2022 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, can cause the bounds of a for loop to be miscalculated, which leads to a use after free condition a pointer is pushed into previously free memory by the loop.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Gt.m Fisglobal * 7.0-000 (including)
Fis-gtm Ubuntu bionic *
Fis-gtm Ubuntu esm-apps/bionic *
Fis-gtm Ubuntu esm-apps/focal *
Fis-gtm Ubuntu esm-apps/jammy *
Fis-gtm Ubuntu esm-apps/xenial *
Fis-gtm Ubuntu focal *
Fis-gtm Ubuntu impish *
Fis-gtm Ubuntu jammy *
Fis-gtm Ubuntu kinetic *
Fis-gtm Ubuntu lunar *
Fis-gtm Ubuntu mantic *
Fis-gtm Ubuntu upstream *

Potential Mitigations

References