CVE-2020-27825
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Se encontró un fallo de uso de la memoria previamente liberada en el archivo kernel/trace/ring_buffer.c en el kernel de Linux (anteriores a la versión 5.10-rc1). Se presentó un problema de carrera en trace_open y el cambio de tamaño del búfer de la CPU ejecutándose paralelamente en diferentes CPUs, puede causar un problema de Denegación de Servicio (DOS). Este fallo podría inclusive permitir a un atacante local con privilegios especiales de usuario amenazar con una filtración de información del kernel
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-10-27 CVE Reserved
- 2020-12-11 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20210521-0008 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1905155 | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://www.debian.org/security/2021/dsa-4843 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | Solidfire Baseboard Management Controller Firmware Search vendor "Netapp" for product "Solidfire Baseboard Management Controller Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Solidfire Baseboard Management Controller Search vendor "Netapp" for product "Solidfire Baseboard Management Controller" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H410c Firmware Search vendor "Netapp" for product "H410c Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H410c Search vendor "Netapp" for product "H410c" | - | - |
Safe
|
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.10 Search vendor "Linux" for product "Linux Kernel" and version "5.10" | rc1 |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Mrg Search vendor "Redhat" for product "Enterprise Mrg" | 2.0 Search vendor "Redhat" for product "Enterprise Mrg" and version "2.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Cloud Backup Search vendor "Netapp" for product "Cloud Backup" | - | - |
Affected
| ||||||