CVE Vulnerabilities

CVE-2021-46141

Use After Free

Published: Jan 06, 2022 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
4 LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM

An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriFreeUriMembers and uriMakeOwner.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
Uriparser Uriparser_project * 0.9.6 (excluding)
Uriparser Ubuntu bionic *
Uriparser Ubuntu esm-apps/bionic *
Uriparser Ubuntu esm-apps/focal *
Uriparser Ubuntu esm-apps/xenial *
Uriparser Ubuntu esm-infra-legacy/trusty *
Uriparser Ubuntu focal *
Uriparser Ubuntu hirsute *
Uriparser Ubuntu impish *
Uriparser Ubuntu trusty *
Uriparser Ubuntu trusty/esm *
Uriparser Ubuntu upstream *
Uriparser Ubuntu xenial *

Potential Mitigations

References