CVE-2023-46724 (GCVE-0-2023-46724)

Vulnerability from cvelistv5 – Published: 2023-11-01 19:09 – Updated: 2025-02-13 17:14
VLAI
Title
SQUID-2023:4 Denial of Service in SSL Certificate validation
Summary
Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-129 - Improper Validation of Array Index
  • CWE-786 - Access of Memory Location Before Start of Buffer
  • CWE-823 - Use of Out-of-range Pointer Offset
  • CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input
Assigner
References
Impacted products
Vendor Product Version
squid-cache squid Affected: >= 3.3.0.1, < 6.4
Create a notification for this product.
Show details on NVD website
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Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid\u0027s patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-129\", \"description\": \"CWE-129: Improper Validation of Array Index\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-786\", \"description\": \"CWE-786: Access of Memory Location Before Start of Buffer\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-823\", \"description\": \"CWE-823: Use of Out-of-range Pointer Offset\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1285\", \"description\": \"CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-12-29T03:06:29.936Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-46724\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T17:14:32.361Z\", \"dateReserved\": \"2023-10-25T14:30:33.751Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-11-01T19:09:34.513Z\", \"assignerShortName\": \"GitHub_M\"}",
      "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.