CVE-2021-33645
HIGHCVSS 7.5/10EPSS 1.43%
Last modified
CVE-2021-33645 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.. EPSS estimates a 1.43% chance of exploitation in the next 30 days.
Description
The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Feep | Libtar | < 1.2.21 | — |
| Openatom | Openeuler | 20.03 | Sp1 |
| Openatom | Openeuler | 22.03 | — |
| Fedoraproject | Fedora | 35 | — |
| Fedoraproject | Fedora | 36 | — |
| Fedoraproject | Fedora | 37 | — |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33645?
The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.
How severe is CVE-2021-33645?
CVE-2021-33645 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33645?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-33645?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST