CVE-2021-29155
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I. Basic Information for CVE-2021-29155
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.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
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存在缓冲区错误漏洞，攻击者可利用该漏洞可以通过猜测的Linux内核的越界负载绕过对数据的访问限制。
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-2021-29155
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Proof of Concept CVE-2021-29155 | https://github.com/benschlueter/CVE-2021-29155 | POC Details |
AI-Generated POCPremium
No public POC found.
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- https://www.kernel.orgx_refsource_MISC
- https://www.openwall.com/lists/oss-security/2021/04/18/4x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XZASHZVCOFJ4VU2I3BN5W5EPHWJQ7QWX/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CUX2CA63453G34C6KYVBLJXJXEARZI2X/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-29155
Same Patch Batch · n/a · 2021-04-20 · 13 CVEs total
| CVE-2020-35314 | WonderCMS 操作系统命令注入漏洞 | |
| CVE-2020-35313 | WonderCMS 代码问题漏洞 | |
| CVE-2021-30464 | OMICRON StationGuard 资源管理错误漏洞 | |
| CVE-2020-14105 | Xiaomi 10 安全漏洞 | |
| CVE-2021-28156 | Hashicorp HashiCorp Consul 安全漏洞 | |
| CVE-2020-25864 | HashiCorp Consul and Consul Enterprise 跨站脚本漏洞 | |
| CVE-2021-28492 | unisys stealth(core) 安全漏洞 | |
| CVE-2021-28793 | Lex Li vscode-restructuredtext 访问控制错误漏洞 | |
| CVE-2021-25681 | ADTRAN AdTran-Personal-Phone-Manager-Vulns 安全漏洞 | |
| CVE-2021-25680 | ADTRAN AdTran-Personal-Phone-Manager-Vulns 跨站脚本漏洞 | |
| CVE-2021-25679 | ADTRAN AdTran-Personal-Phone-Manager-Vulns 跨站脚本漏洞 | |
| CVE-2021-30496 | Telegram 安全漏洞 |
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-2021-29155
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