{
  "threat_severity" : "Moderate",
  "public_date" : "2024-01-24T00:00:00Z",
  "bugzilla" : {
    "description" : "squid: vulnerable to a Denial of Service attack against Cache Manager error responses",
    "id" : "2260051",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2260051"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-825",
  "details" : [ "Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`.", "A flaw was found in Squid, resulting in a potential denial of service attack targeting Cache Manager error responses. This issue enables a trusted client to execute a denial of service by manipulating the generation of error pages for Client Manager reports." ],
  "statement" : "The identified vulnerability in Squid, leading to a Denial of Service attack against Cache Manager error responses, is considered a moderate issue. While it requires a trusted client for exploitation, the potential impact lies in the ability to disrupt normal functioning by manipulating error pages during the generation of Client Manager reports.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2024-11-14T00:00:00Z",
    "advisory" : "RHSA-2024:9644",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "squid:4-8100020241113143337.489197e6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-07-25T00:00:00Z",
    "advisory" : "RHSA-2024:4861",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "squid-7:5.5-13.el9_4"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "squid",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "squid34",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "squid",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-23638\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-23638\nhttp://www.squid-cache.org/Versions/v5/SQUID-2023_11.patch\nhttp://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch\nhttps://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382b\nhttps://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx\nhttps://megamansec.github.io/Squid-Security-Audit/stream-assert.html" ],
  "name" : "CVE-2024-23638",
  "mitigation" : {
    "value" : "Restrict entry to Cache Manager through Squid's primary access control:\nhttp_access deny manager",
    "lang" : "en:us"
  },
  "csaw" : false
}