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{"affected_release": [{"advisory": "RHSA-2021:1135", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "squid-7:3.5.20-17.el7_9.6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-04-08T00:00:00Z"}, {"advisory": "RHSA-2021:1979", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "squid:4-8040020210420090912.522a0ee4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:2025", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "squid:4-8010020210401091540.c27ad7f8", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-05-19T00:00:00Z"}, {"advisory": "RHSA-2021:2025", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "squid:4-8020020210401090524.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-05-19T00:00:00Z"}], "bugzilla": {"description": "squid: improper input validation may allow a trusted client to perform HTTP request smuggling", "id": "1939925", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939925"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.", "A flaw was found in squid. Due to improper validation while parsing the request URI, squid is vulnerable to HTTP request smuggling. This issue could allow a trusted client to perform an HTTP request smuggling attack and access services otherwise forbidden by squid. The highest threat from this vulnerability is to data confidentiality."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by setting the `uri_whitespace` directive in squid.conf to either: \n```\nuri_whitespace deny\n```\nor\n```\nuri_whitespace encode\n```"}, "name": "CVE-2020-25097", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid34", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-25097\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25097\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6"], "statement": "This flaw is not tied to a specific proxy type (e.g., forward or reverse) and has been rated as having a security impact of Important. This flaw affects the versions of Squid as shipped with Red Hat Enterprise Linux 7 and 8, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 6. Red Hat Enterprise Linux 6 is now in Extended Life Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.", "threat_severity": "Important", "upstream_fix": "squid 4.14, squid 5.0.5"}