Vulnerability-Lookup

CNVD-2023-54411

Vulnerability from cnvd - Published: 2023-07-06

Title

Linux kernel vidtv_mux_stop_thread拒绝服务漏洞

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 6.2版本存在拒绝服务漏洞，该漏洞源于drivers/media/test-drivers/vidtv/vidtv_bridge.c的vidtv_mux_stop_thread中有一个NULL指针取消引用，攻击者可利用该漏洞导致拒绝服务。

Severity

中

Patch Name

Linux kernel vidtv_mux_stop_thread拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://lore.kernel.org/all/CA+UBctDXyiosaiR7YNKCs8k0aWu4gU+YutRcnC+TDJkXpHjQag@mail.gmail.com/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2023-31081

Impacted products

Name
Linux Linux kernel 6.2

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-31081",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-31081"
    }
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  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 6.2\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8edrivers/media/test-drivers/vidtv/vidtv_bridge.c\u7684vidtv_mux_stop_thread\u4e2d\u6709\u4e00\u4e2aNULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-54411",
  "openTime": "2023-07-06",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 6.2\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8edrivers/media/test-drivers/vidtv/vidtv_bridge.c\u7684vidtv_mux_stop_thread\u4e2d\u6709\u4e00\u4e2aNULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel vidtv_mux_stop_thread\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel 6.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-31081",
  "serverity": "\u4e2d",
  "submitTime": "2023-04-27",
  "title": "Linux kernel vidtv_mux_stop_thread\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2023-31081 (GCVE-0-2023-31081)

Vulnerability from cvelistv5 – Published: 2023-04-24 00:00 – Updated: 2025-02-04 19:25

Summary

An issue was discovered in drivers/media/test-drivers/vidtv/vidtv_bridge.c in the Linux kernel 6.2. There is a NULL pointer dereference in vidtv_mux_stop_thread. In vidtv_stop_streaming, after dvb->mux=NULL occurs, it executes vidtv_mux_stop_thread(dvb->mux).

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 19:25 UTC

CWE

n/a
CWE-476 - NULL Pointer Dereference

Assigner

mitre mitre root

References

3 references

URL	Tags
https://lore.kernel.org/all/CA+UBctDXyiosaiR7YNKC…
https://security.netapp.com/advisory/ntap-2023092…
https://bugzilla.suse.com/show_bug.cgi?id=1210782

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-02T14:45:25.555Z",
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            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1210782"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.