Memory Leak Vulnerability in OpenEuler and Fedora Products
CVE-2021-33646

7.5HIGH

Key Information:

Vendor

Feep

Status
Libtar
Vendor
CVE Published:
10 August 2022

What is CVE-2021-33646?

The th_read() function in OpenEuler and Fedora products exhibits a memory leak issue, where insufficient memory management leads to unreleased variable t->th_buf.gnu_longname after allocation. This flaw can lead to increased memory consumption over time, potentially affecting system performance and stability. Corrective actions should focus on proper memory allocation and deallocation practices to mitigate the associated risks.

Affected Version(s)

libtar <1.2.21

References

https://www.openeuler.org/en/security/safety-bulletin/det...
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.