7.8
CVE-2020-36387
- EPSS 0.39%
- Veröffentlicht 07.06.2021 20:15:08
- Zuletzt bearbeitet 21.11.2024 05:29:23
- Quelle cve@mitre.org
- CVE-Watchlists
- Unerledigt
An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7 < 5.7.16
Linux ≫ Linux Kernel Version >= 5.8 < 5.8.2
Netapp ≫ H300s Firmware Version-
Netapp ≫ H500s Firmware Version-
Netapp ≫ H700s Firmware Version-
Netapp ≫ H300e Firmware Version-
Netapp ≫ H500e Firmware Version-
Netapp ≫ H700e Firmware Version-
Netapp ≫ H410s Firmware Version-
Netapp ≫ H410c Firmware Version-
VulnDex Vulnerability Enrichment
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Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.39% | 0.307 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.8 | 1.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 7.2 | 3.9 | 10 |
AV:L/AC:L/Au:N/C:C/I:C/A:C
|
CWE-416 Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe
https://security.netapp.com/advisory/ntap-20210727-0006/
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func
https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b