CVE-2021-43389
kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.
Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.14.15. Se presenta un fallo de índice de matriz fuera de límites en la función detach_capi_ctr en el archivo drivers/isdn/capi/kcapi.c
An improper validation of an array index and out of bounds memory read in the Linux kernel's Integrated Services Digital Network (ISDN) functionality was found in the way users call ioctl CMTPCONNADD. A local user could use this flaw to crash the system or starve the resources causing denial of service.
Red Hat Advanced Cluster Management for Kubernetes 2.5.0 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include privilege escalation and traversal vulnerabilities.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-11-04 CVE Reserved
- 2021-11-04 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (11)
URL | Tag | Source |
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http://www.openwall.com/lists/oss-security/2021/11/05/1 | Mailing List |
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https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15 | Mailing List | |
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html | Mailing List |
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https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | Mailing List |
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https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA%40mail.gmail.com | X_refsource_misc |
URL | Date | SRC |
---|---|---|
https://seclists.org/oss-sec/2021/q4/39 | 2024-08-04 |
URL | Date | SRC |
---|---|---|
https://www.debian.org/security/2022/dsa-5096 | 2023-11-07 | |
https://access.redhat.com/security/cve/CVE-2021-43389 | 2022-05-10 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.14.15 Search vendor "Linux" for product "Linux Kernel" and version " < 5.14.15" | - |
Affected
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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
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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
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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
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Oracle Search vendor "Oracle" | Communications Cloud Native Core Binding Support Function Search vendor "Oracle" for product "Communications Cloud Native Core Binding Support Function" | 22.1.3 Search vendor "Oracle" for product "Communications Cloud Native Core Binding Support Function" and version "22.1.3" | - |
Affected
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Oracle Search vendor "Oracle" | Communications Cloud Native Core Network Exposure Function Search vendor "Oracle" for product "Communications Cloud Native Core Network Exposure Function" | 22.1.1 Search vendor "Oracle" for product "Communications Cloud Native Core Network Exposure Function" and version "22.1.1" | - |
Affected
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Oracle Search vendor "Oracle" | Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy" | 22.2.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "22.2.0" | - |
Affected
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