CVE-2023-24545 (GCVE-0-2023-24545)

Vulnerability from cvelistv5 – Published: 2023-04-12 00:00 – Updated: 2025-02-07 15:50
VLAI
Title
On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch.
Summary
On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch. This causes a leak of packet buffers and if enough malformed packets are received, the switch may eventually stop forwarding traffic.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-07 15:50 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
Arista CNA under the mitre root
CNA scorecard B 87/100 over 90 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Arista Networks EOS Affected: 4.29.0 , ≤ 4.29.1F (custom)
Affected: 4.28.0 , ≤ 4.28.4M (custom)
Affected: 4.27.0 , ≤ 4.27.7M (custom)
Affected: 4.26.8M , ≤ 4.26.8M (custom)
guessed Create a notification for this product.
Date Public
2023-04-11 00:00
Show details on NVD website
To clipboard 

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                  "version": "4.28.0",
                  "versionType": "custom"
                },
                {
                  "lessThanOrEqual": "4.27.7M",
                  "status": "affected",
                  "version": "4.27.0",
                  "versionType": "custom"
                },
                {
                  "lessThanOrEqual": "4.26.8M",
                  "status": "affected",
                  "version": "4.26.8M",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "configurations": [
            {
              "lang": "en",
              "value": "In order to be vulnerable to CVE-2023-24545 and CVE-2023-24513, the switch must be configured to run the Software Forwarding Engine (Sfe). Sfe is the default configuration on CloudEOS platforms. "
            }
          ],
          "datePublic": "2023-04-11T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch. This causes a leak of packet buffers and if enough malformed packets are received, the switch may eventually stop forwarding traffic."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-400",
                  "description": "CWE-400 Uncontrolled Resource Consumption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-04-12T00:00:00.000Z",
            "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
            "shortName": "Arista"
          },
          "references": [
            {
              "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/17240-security-advisory-0085"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Artista recommends customers move to the latest version of each release that contains all the fixes listed below.\n\nCVE-2023-24545 has been fixed in the following releases:\n4.29.2F and later releases in the 4.29.x train\n4.28.5M and later releases in the 4.28.x train\n4.27.8M and later releases in the 4.27.x train\n4.26.9M and later releases in the 4.26.x train\n"
            },
            {
              "lang": "en",
              "value": "The following hotfixes can be applied to remediate both CVE-2023-24545 and CVE-2023-24513. Due to the size of the hotfixes, there are multiple files. Each hotfix applies to a specific set of release trSecurityAdvisory8X_4.28_Hotfix.swixains:\n\nNote: Installing/uninstalling the SWIX will cause Sfe agent to restart and stop forwarding traffic for up to 10 seconds.\n4.29.1F and below releases in the 4.29.x Train:\nURL:SecurityAdvisory85_4.29_Hotfix.swix\nSWIX Hash:\nSHA512 (SHA-512)c965e149cbbaa8698648af9290c5a728e9fe635186eee7629b789502ef37db4a94beea5ecd20e1dc8a19c2cc8988052b625cfccf764c28b8b0e9e4eef8e79bb4Open with Google Docs\n4.28.5M and below releases in the 4.28.x train:\nURL:SecurityAdvisory85_4.28_Hotfix.swix\nSWIX Hash:\n(SHA-512)522d51c6548111d9819ef8b1523b8798ac6847012955e3f885c6f466c81468960fbd4497b45289c8f77297263111340fbdbd7003a30b64e3ef9a270ace62c079\n4.27.8M and below releases in the 4.27.x train:\nURL:SecurityAdvisory85_4.27_Hotfix.swix\nSWIX Hash:\n(SHA-512)5ce5479c11abf185f50d484204555b2dfb9b1c93e8f475d027082ca0951cbfca0f331960a1dd111b8c079264b1dab31b0a62c8daf011afb27b1283c2382747a2Open with Go\n4.26.9M and below releases in the 4.26.x train:\nURL:SecurityAdvisory85_4.26_Hotfix.swix\nSWIX Hash:\n(SHA-512)9386f12a24f35679bdeb08d506bf0bddb9703d1ef3043de2c06d09ff47f2dd0d1bd7aca0748febb5b04fbdeaed7c4ae2922086fb638c754c3a9a5384306396d2\n"
            }
          ],
          "source": {
            "advisory": "85",
            "defect": [
              "743423"
            ],
            "discovery": "INTERNAL"
          },
          "title": "On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch.",
          "workarounds": [
            {
              "lang": "en",
              "value": "There is no mitigation / workaround for these issues."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 0.0.9"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
        "assignerShortName": "Arista",
        "cveId": "CVE-2023-24545",
        "datePublished": "2023-04-12T00:00:00.000Z",
        "dateReserved": "2023-01-26T00:00:00.000Z",
        "dateUpdated": "2025-02-07T15:50:41.522Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    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.