CVE-2021-33640
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues to use pointer t: free_longlink_longname(t->th_buf) . As a result, the released memory is used (use-after-free).
Después de tar_close(), libtar.c libera la memoria a la que apunta el puntero t. Después de llamar a tar_close() en la función list(), continúa usando el puntero t: free_longlink_longname(t->th_buf). Como resultado, la memoria liberada se utiliza (use after free).
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-05-28 CVE Reserved
- 2022-12-19 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-09 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (3)
| URL | Tag | Source |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Huawei Search vendor "Huawei" | Openeuler Search vendor "Huawei" for product "Openeuler" | 20.03 Search vendor "Huawei" for product "Openeuler" and version "20.03" | sp1, lts |
Affected
| ||||||
| Huawei Search vendor "Huawei" | Openeuler Search vendor "Huawei" for product "Openeuler" | 20.03 Search vendor "Huawei" for product "Openeuler" and version "20.03" | sp2, lts |
Affected
| ||||||
| Huawei Search vendor "Huawei" | Openeuler Search vendor "Huawei" for product "Openeuler" | 22.03 Search vendor "Huawei" for product "Openeuler" and version "22.03" | lts |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 36 Search vendor "Fedoraproject" for product "Fedora" and version "36" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 37 Search vendor "Fedoraproject" for product "Fedora" and version "37" | - |
Affected
| ||||||