CVE Vulnerabilities

CVE-2021-37322

Use After Free

Published: Nov 18, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.8 MODERATE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
NEGLIGIBLE

GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
Binutils Gnu * 2.32 (excluding)
Gcc Gnu * 10.1 (excluding)
Binutils Ubuntu esm-infra-legacy/trusty *
Binutils Ubuntu esm-infra/xenial *
Binutils Ubuntu hirsute *
Binutils Ubuntu trusty *
Binutils Ubuntu trusty/esm *
Binutils Ubuntu upstream *
Binutils Ubuntu xenial *

Potential Mitigations

References