Vulnerability-Lookup

CNVD-2021-16847

Vulnerability from cnvd - Published: 2021-03-12

Title

F5 BIGIP TMM缓存溢出漏洞

Description

F5 BIG-IP是F5公司的一款集成了网络流量编排、负载均衡、智能DNS，远程接入策略管理等功能的应用交付平台。 F5 BIGIP TMM缓存溢出漏洞，VS在处理部分未披露的请求时会导致TMM的URI格式化出错，会导致一个缓存溢出，导致DOS攻击。攻击者可利用该漏洞绕过基于URL的访问控制或者是远程命令执行。

Severity

高

Patch Name

F5 BIGIP TMM缓存溢出漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://support.f5.com/csp/article/K56715231

Impacted products

Name
['F5 BIG-IP AAM', 'F5 BIG-IP LTM', 'F5 BIG-IP AFM', 'F5 BIG-IP Analytics', 'F5 BIG-IP APM', 'F5 BIG-IP ASM', 'F5 BIG-IP Link Controller', 'F5 BIG-IP GTM', 'F5 BIG-IP DNS', 'F5 BIG-IP PEM', 'F5 BIG-IP Advanced WAF', 'F5 BIG-IP DDHD', 'F5 BIG-IP FPS', 'F5 BIG-IP SSLO']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-22991"
    }
  },
  "description": "F5 BIG-IP\u662fF5\u516c\u53f8\u7684\u4e00\u6b3e\u96c6\u6210\u4e86\u7f51\u7edc\u6d41\u91cf\u7f16\u6392\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u667a\u80fdDNS\uff0c\u8fdc\u7a0b\u63a5\u5165\u7b56\u7565\u7ba1\u7406\u7b49\u529f\u80fd\u7684\u5e94\u7528\u4ea4\u4ed8\u5e73\u53f0\u3002\n\nF5 BIGIP TMM\u7f13\u5b58\u6ea2\u51fa\u6f0f\u6d1e\uff0cVS\u5728\u5904\u7406\u90e8\u5206\u672a\u62ab\u9732\u7684\u8bf7\u6c42\u65f6\u4f1a\u5bfc\u81f4TMM\u7684URI\u683c\u5f0f\u5316\u51fa\u9519\uff0c\u4f1a\u5bfc\u81f4\u4e00\u4e2a\u7f13\u5b58\u6ea2\u51fa\uff0c\u5bfc\u81f4DOS\u653b\u51fb\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u57fa\u4e8eURL\u7684\u8bbf\u95ee\u63a7\u5236\u6216\u8005\u662f\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://support.f5.com/csp/article/K56715231",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-16847",
  "openTime": "2021-03-12",
  "patchDescription": "F5 BIG-IP\u662fF5\u516c\u53f8\u7684\u4e00\u6b3e\u96c6\u6210\u4e86\u7f51\u7edc\u6d41\u91cf\u7f16\u6392\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u667a\u80fdDNS\uff0c\u8fdc\u7a0b\u63a5\u5165\u7b56\u7565\u7ba1\u7406\u7b49\u529f\u80fd\u7684\u5e94\u7528\u4ea4\u4ed8\u5e73\u53f0\u3002\r\n\r\nF5 BIGIP TMM\u7f13\u5b58\u6ea2\u51fa\u6f0f\u6d1e\uff0cVS\u5728\u5904\u7406\u90e8\u5206\u672a\u62ab\u9732\u7684\u8bf7\u6c42\u65f6\u4f1a\u5bfc\u81f4TMM\u7684URI\u683c\u5f0f\u5316\u51fa\u9519\uff0c\u4f1a\u5bfc\u81f4\u4e00\u4e2a\u7f13\u5b58\u6ea2\u51fa\uff0c\u5bfc\u81f4DOS\u653b\u51fb\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u57fa\u4e8eURL\u7684\u8bbf\u95ee\u63a7\u5236\u6216\u8005\u662f\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\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": "F5 BIGIP TMM\u7f13\u5b58\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "F5 BIG-IP AAM",
      "F5 BIG-IP LTM",
      "F5 BIG-IP AFM",
      "F5 BIG-IP Analytics",
      "F5 BIG-IP APM",
      "F5 BIG-IP ASM",
      "F5 BIG-IP Link Controller",
      "F5 BIG-IP GTM",
      "F5 BIG-IP DNS",
      "F5 BIG-IP PEM",
      "F5 BIG-IP Advanced WAF",
      "F5 BIG-IP DDHD",
      "F5 BIG-IP FPS",
      "F5 BIG-IP SSLO"
    ]
  },
  "serverity": "\u9ad8",
  "submitTime": "2021-03-11",
  "title": "F5 BIGIP TMM\u7f13\u5b58\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-22991 (GCVE-0-2021-22991)

Vulnerability from cvelistv5 – Published: 2021-03-31 17:23 – Updated: 2025-10-21 23:25

Summary

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Severity

9.8 (Critical)


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

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 20:33 UTC

CWE

RCE
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

f5 mitre root

References

2 references

URL	Tags
https://support.f5.com/csp/article/K56715231	x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
n/a	BIG-IP	Affected: 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3

Show details on NVD website

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:58:26.089Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K56715231"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
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                "options": [
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                  },
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-29T20:33:09.572716Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-01-18",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22991"
              },
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            }
          }
        ],
        "problemTypes": [
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        "references": [
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          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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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.

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.

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CNVD-2021-16847

CVE-2021-22991 (GCVE-0-2021-22991)

Tags

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Nomenclature

Related by attack behaviour