CVE-2021-27365
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I. Basic Information for CVE-2021-27365
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel through 5.11.3 存在缓冲区错误漏洞，该漏洞源于某些iSCSI数据结构没有适当的长度约束或检查。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-27365
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/coderzawad/Kernel-CVE-2021-27365-hotfix | POC Details |
| 2 | None | https://github.com/Iweisc/Kernel-CVE-2021-27365-hotfix | POC Details |
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No public POC found.
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- https://www.openwall.com/lists/oss-security/2021/03/06/1x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210409-0001/x_refsource_CONFIRM
- https://bugzilla.suse.com/show_bug.cgi?id=1182715x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuoct2021.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-27365
Same Patch Batch · n/a · 2021-03-07 · 6 CVEs total
| CVE-2020-28466 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2009-20001 | MantisBT 代码问题漏洞 | |
| CVE-2021-27364 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2021-27363 | Linux kernel 安全漏洞 | |
| CVE-2021-26294 | Aurora 路径遍历漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
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Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2021-27365
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