MSRC_CVE-2023-46853

Vulnerability from csaf_microsoft - Published: 2023-10-01 00:00 - Updated: 2024-06-30 07:00
Summary
In Memcached before 1.6.22 an off-by-one error exists when processing proxy requests in proxy mode if \n is used instead of \r\n.

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
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{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2023-46853 In Memcached before 1.6.22 an off-by-one error exists when processing proxy requests in proxy mode if \\n is used instead of \\r\\n. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-46853.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "In Memcached before 1.6.22 an off-by-one error exists when processing proxy requests in proxy mode if \\n is used instead of \\r\\n.",
    "tracking": {
      "current_release_date": "2024-06-30T07:00:00.000Z",
      "generator": {
        "date": "2025-10-20T00:44:26.400Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-46853",
      "initial_release_date": "2023-10-01T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-11-01T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2024-06-30T07:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              },
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 memcached 1.6.21-1",
                "product": {
                  "name": "\u003cazl3 memcached 1.6.21-1",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 memcached 1.6.21-1",
                "product": {
                  "name": "azl3 memcached 1.6.21-1",
                  "product_id": "19776"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 memcached 1.6.22-1",
                "product": {
                  "name": "\u003ccbl2 memcached 1.6.22-1",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 memcached 1.6.22-1",
                "product": {
                  "name": "cbl2 memcached 1.6.22-1",
                  "product_id": "18273"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 memcached 1.6.27-1",
                "product": {
                  "name": "\u003cazl3 memcached 1.6.27-1",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 memcached 1.6.27-1",
                "product": {
                  "name": "azl3 memcached 1.6.27-1",
                  "product_id": "18274"
                }
              }
            ],
            "category": "product_name",
            "name": "memcached"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 memcached 1.6.21-1 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      },
      {
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      },
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        },
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        "relates_to_product_reference": "17086"
      },
      {
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        },
        "product_reference": "18273",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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        },
        "product_reference": "2",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 memcached 1.6.27-1 as a component of Azure Linux 3.0",
          "product_id": "18274-17084"
        },
        "product_reference": "18274",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-46853",
      "cwe": {
        "id": "CWE-193",
        "name": "Off-by-one Error"
      },
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "19776-17084",
          "18273-17086",
          "18274-17084"
        ],
        "known_affected": [
          "17084-1",
          "17086-3",
          "17084-2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-46853 In Memcached before 1.6.22 an off-by-one error exists when processing proxy requests in proxy mode if \\n is used instead of \\r\\n. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-46853.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-11-01T00:00:00.000Z",
          "details": "1.6.27-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-1",
            "17084-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2023-11-01T00:00:00.000Z",
          "details": "1.6.22-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.8,
            "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"
          },
          "products": [
            "17084-1",
            "17086-3",
            "17084-2"
          ]
        }
      ],
      "title": "In Memcached before 1.6.22 an off-by-one error exists when processing proxy requests in proxy mode if \\n is used instead of \\r\\n."
    }
  ]
}


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  • 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.
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