CVE Vulnerabilities

CVE-2020-15475

Use After Free

Published: Jul 01, 2020 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a use-after-free.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
Ndpi Ntop * 3.2 (including)
Ndpi Ubuntu bionic *
Ndpi Ubuntu eoan *
Ndpi Ubuntu groovy *
Ndpi Ubuntu hirsute *
Ndpi Ubuntu impish *
Ndpi Ubuntu kinetic *
Ndpi Ubuntu lunar *
Ndpi Ubuntu mantic *
Ndpi Ubuntu trusty *
Ndpi Ubuntu upstream *
Ndpi Ubuntu xenial *

Potential Mitigations

References