Vulnerability-Lookup

CNVD-2021-13230

Vulnerability from cnvd - Published: 2021-02-27

Title

Sangoma Asterisk缓冲区溢出漏洞

Description

Sangoma Asterisk是Sangoma公司的一个应用软件。 Sangoma Asterisk中存在缓冲区溢出漏洞。该漏洞源于res_pjsip_diversion.c文件的错误处理，攻击者可利用该漏洞故意误用SIP181响应导致应用崩溃。

Severity

中

Patch Name

Sangoma Asterisk缓冲区溢出漏洞的补丁

Patch Description

Sangoma Asterisk是Sangoma公司的一个应用软件。 Sangoma Asterisk中存在缓冲区溢出漏洞。该漏洞源于res_pjsip_diversion.c文件的错误处理，攻击者可利用该漏洞故意误用SIP181响应导致应用崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://issues.asterisk.org/jira/browse/ASTERISK-29227

Reference

https://vigilance.fr/vulnerability/Asterisk-denial-of-service-via-res-pjsip-diversion-34613

Impacted products

Name
Sangoma Sangoma Asterisk

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-35776",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-35776"
    }
  },
  "description": "Sangoma Asterisk\u662fSangoma\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\n\nSangoma Asterisk\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eres_pjsip_diversion.c\u6587\u4ef6\u7684\u9519\u8bef\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6545\u610f\u8bef\u7528SIP181\u54cd\u5e94\u5bfc\u81f4\u5e94\u7528\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://issues.asterisk.org/jira/browse/ASTERISK-29227",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-13230",
  "openTime": "2021-02-27",
  "patchDescription": "Sangoma Asterisk\u662fSangoma\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\r\n\r\nSangoma Asterisk\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eres_pjsip_diversion.c\u6587\u4ef6\u7684\u9519\u8bef\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6545\u610f\u8bef\u7528SIP181\u54cd\u5e94\u5bfc\u81f4\u5e94\u7528\u5d29\u6e83\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": "Sangoma Asterisk\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Sangoma Sangoma Asterisk"
  },
  "referenceLink": "https://vigilance.fr/vulnerability/Asterisk-denial-of-service-via-res-pjsip-diversion-34613",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-20",
  "title": "Sangoma Asterisk\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-35776 (GCVE-0-2020-35776)

Vulnerability from cvelistv5 – Published: 2021-02-18 19:57 – Updated: 2024-08-04 17:09

Summary

A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2230 records in the last 180 days details

References

5 references

URL	Tags
https://issues.asterisk.org/	x_refsource_MISC
http://seclists.org/fulldisclosure/2021/Feb/57	mailing-listx_refsource_FULLDISC
https://downloads.asterisk.org/pub/security/AST-2…	x_refsource_CONFIRM
https://issues.asterisk.org/jira/browse/ASTERISK-29227	x_refsource_CONFIRM
http://packetstormsecurity.com/files/161470/Aster…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.

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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.
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