CVE-2023-5217 (GCVE-0-2023-5217)

Vulnerability from cvelistv5 – Published: 2023-09-28 15:23 – Updated: 2025-10-21 23:05
VLAI CISA KEVIntel
Summary
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Heap buffer overflow
  • CWE-787 - Out-of-bounds Write
Assigner
References
URL Tags
https://chromereleases.googleblog.com/2023/09/sta…
https://crbug.com/1486441
http://www.openwall.com/lists/oss-security/2023/09/28/5
http://www.openwall.com/lists/oss-security/2023/09/28/6
http://www.openwall.com/lists/oss-security/2023/09/29/1
http://www.openwall.com/lists/oss-security/2023/09/29/2
http://www.openwall.com/lists/oss-security/2023/09/29/7
http://www.openwall.com/lists/oss-security/2023/09/29/9
https://www.mozilla.org/en-US/security/advisories…
https://security-tracker.debian.org/tracker/CVE-2…
https://bugzilla.redhat.com/show_bug.cgi?id=2241191
https://stackdiary.com/google-discloses-a-webm-vp…
https://www.openwall.com/lists/oss-security/2023/…
https://pastebin.com/TdkC4pDv
https://github.com/webmproject/libvpx/commit/3fbd…
https://github.com/webmproject/libvpx/commit/af6d…
https://github.com/webmproject/libvpx/tags
http://www.openwall.com/lists/oss-security/2023/0…
http://www.openwall.com/lists/oss-security/2023/0…
http://www.openwall.com/lists/oss-security/2023/0…
https://www.debian.org/security/2023/dsa-5510
https://www.debian.org/security/2023/dsa-5509
https://www.debian.org/security/2023/dsa-5508
http://www.openwall.com/lists/oss-security/2023/09/30/1
https://lists.debian.org/debian-lts-announce/2023…
https://twitter.com/maddiestone/status/1707163313…
https://arstechnica.com/security/2023/09/new-0-da…
https://github.com/webmproject/libvpx/releases/ta…
http://www.openwall.com/lists/oss-security/2023/09/30/3
http://www.openwall.com/lists/oss-security/2023/09/30/2
http://www.openwall.com/lists/oss-security/2023/09/30/4
http://www.openwall.com/lists/oss-security/2023/09/30/5
https://lists.fedoraproject.org/archives/list/pac…
http://www.openwall.com/lists/oss-security/2023/10/01/2
http://www.openwall.com/lists/oss-security/2023/10/01/1
http://www.openwall.com/lists/oss-security/2023/10/01/5
https://lists.debian.org/debian-lts-announce/2023…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
http://www.openwall.com/lists/oss-security/2023/10/02/6
http://www.openwall.com/lists/oss-security/2023/1…
https://security.gentoo.org/glsa/202310-04
https://support.apple.com/kb/HT213961
https://lists.fedoraproject.org/archives/list/pac…
http://seclists.org/fulldisclosure/2023/Oct/12
https://lists.debian.org/debian-lts-announce/2023…
https://support.apple.com/kb/HT213972
http://seclists.org/fulldisclosure/2023/Oct/16
https://lists.fedoraproject.org/archives/list/pac…
https://security.gentoo.org/glsa/202401-34
https://www.cisa.gov/known-exploited-vulnerabilit… government-resource
Impacted products
Vendor Product Version
Google Chrome Affected: 117.0.5938.132 , < 117.0.5938.132 (custom)
Create a notification for this product.
Google libvpx Affected: 1.13.1 , < 1.13.1 (custom)
Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 74df2788-390f-45df-b8b2-7da229fb9084

Vulnerability ID: CVE-2023-5217

Status: Confirmed

Status Updated: 2023-10-02 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-02
Asserted: 2023-10-02
Scope
Notes: KEV entry: Google Chromium libvpx Heap Buffer Overflow Vulnerability | Affected: Google / Chromium libvpx | Description: Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-10-23 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html; https://nvd.nist.gov/vuln/detail/CVE-2023-5217
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Chromium libvpx
Due Date 2023-10-23
Date Added 2023-10-02
Vendorproject Google
Vulnerabilityname Google Chromium libvpx Heap Buffer Overflow Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 26d3c743-161b-4a3c-96fa-d3e14a832717

Vulnerability ID: CVE-2023-5217

Status: Confirmed

Status Updated: 2023-10-02 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-02
Asserted: 2023-10-02
Scope
Notes: KEVIntel entry: Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially... | Affected: Google / Chrome, libvpx | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially...
Vendor Google
Product Chrome, libvpx
Added Date 2023-10-02T00:00:00.000Z
Cvss Score 8.8
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:46 UTC | Updated: 2026-06-19 12:46 UTC
Show details on NVD website
To clipboard 

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    "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
    "assignerShortName": "Chrome",
    "cveId": "CVE-2023-5217",
    "datePublished": "2023-09-28T15:23:18.340Z",
    "dateReserved": "2023-09-27T01:52:05.679Z",
    "dateUpdated": "2025-10-21T23:05:36.191Z",
    "state": "PUBLISHED"
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      "cwes": "[\"CWE-787\"]",
      "dateAdded": "2023-10-02",
      "dueDate": "2023-10-23",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html; https://nvd.nist.gov/vuln/detail/CVE-2023-5217",
      "product": "Chromium libvpx",
      "requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
      "shortDescription": "Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome.",
      "vendorProject": "Google",
      "vulnerabilityName": "Google Chromium libvpx Heap Buffer Overflow Vulnerability"
    },
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      "date": "2026-06-22",
      "epss": "0.34401",
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      "cisaExploitAdd": "2023-10-02",
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)\"}, {\"lang\": \"es\", \"value\": \"El desbordamiento del b\\u00fafer en la codificaci\\u00f3n vp8 en libvpx en Google Chrome anterior a 117.0.5938.132 y libvpx 1.13.1 permit\\u00eda a un atacante remoto explotar potencialmente la corrupci\\u00f3n del mont\\u00f3n a trav\\u00e9s de una p\\u00e1gina HTML manipulada. (Severidad de seguridad de Chrome: alta)\"}]",
      "id": "CVE-2023-5217",
      "lastModified": "2024-12-20T19:01:23.347",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 5.9}]}",
      "published": "2023-09-28T16:15:10.980",
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      "cveMetadata": "{\"cveId\": \"CVE-2023-5217\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:36.191Z\", \"dateReserved\": \"2023-09-27T01:52:05.679Z\", \"assignerOrgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"datePublished\": \"2023-09-28T15:23:18.340Z\", \"assignerShortName\": \"Chrome\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





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

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.