{ "document": { "aggregate_severity": { "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "* SECURITY UPDATE: out-of-bounds read in the FTP gateway directory-listing\n parser when a TypeA/TypeB listing entry date is not followed by a filename\n - debian/patches/CVE-2026-47729.patch: restrict parsing to the input buffer\n in ftpListParseParts() by checking for a NUL byte before strchr(w_space)\n in src/clients/FtpGateway.cc\n - CVE-2026-47729\n * SECURITY UPDATE: heap-based buffer overflow in cache digest reply handling\n when a peer reply's on-the-wire size exceeds the declared mask_size\n - debian/patches/CVE-2026-50012.patch: bound-check mask_offset + size\n against mask_size before memcpy() in peerDigestSwapInMask() and abort the\n fetch on overflow in src/peer_digest.cc\n - CVE-2026-50012", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/advisories/2026/clsa-2026_1784710881.json" } ], "tracking": { "current_release_date": "2026-07-22T09:02:53Z", "generator": { "date": "2026-07-22T09:02:53Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1784710881", "initial_release_date": "2026-07-22T09:02:53Z", "revision_history": [ { "date": "2026-07-22T09:02:53Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2026-47729, CVE-2026-50012" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian 10", "product": { 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"product_reference": "squidclient-0:4.6-1+deb10u10+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64" }, "product_reference": "squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64" }, "product_reference": "squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "squid-0:4.6-1+deb10u10+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els1.amd64" }, "product_reference": "squid-0:4.6-1+deb10u10+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-47729", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els5.amd64" ], "known_affected": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els4.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-47729" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8", "url": "https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/pull/2408", "url": "https://github.com/squid-cache/squid/pull/2408" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/pull/2409", "url": "https://github.com/squid-cache/squid/pull/2409" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/releases/tag/SQUID_7_6", "url": "https://github.com/squid-cache/squid/releases/tag/SQUID_7_6" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg" } ], "release_date": "2026-07-16T17:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-22T09:01:27.032940Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881", "product_ids": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els5.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881" }, { "category": "none_available", "date": "2026-07-16T17:16:00Z", "details": "Affected", "product_ids": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els4.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] }, { "cve": "CVE-2026-50012", "cwe": { "id": "CWE-20", "name": "Improper Input Validation" }, "notes": [ { "category": "description", "text": "Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may be larger than the mask_size declared within the digest, so a trusted peer sending a maliciously crafted reply to a cache_digest request message can trigger the overflow. This attack is limited to Squid instances compiled with the --enable-cache-digests option and configured with cache_peer entries. This issue is fixed in version 7.6.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els5.amd64" ], "known_affected": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els4.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-50012" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/commit/19fcfe922717c8b255270c032dcde4071c003bcd", "url": "https://github.com/squid-cache/squid/commit/19fcfe922717c8b255270c032dcde4071c003bcd" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/pull/2423", "url": "https://github.com/squid-cache/squid/pull/2423" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/releases/tag/SQUID_7_6", "url": "https://github.com/squid-cache/squid/releases/tag/SQUID_7_6" }, { "category": "external", "summary": "https://github.com/squid-cache/squid/security/advisories/GHSA-5vmx-9x64-9284", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-5vmx-9x64-9284" } ], "release_date": "2026-07-16T17:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-22T09:01:27.032940Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881", "product_ids": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els5.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784710881" }, { "category": "none_available", "date": "2026-07-16T17:16:00Z", "details": "Affected", "product_ids": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els4.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els1.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els2.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els3.all", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els4.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els1.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els2.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els3.amd64", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els4.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H", "version": "3.1" }, "products": [ "Debian-10:squid-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-cgi-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid-common-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squid-purge-0:4.6-1+deb10u10+tuxcare.els5.amd64", "Debian-10:squid3-0:4.6-1+deb10u10+tuxcare.els5.all", "Debian-10:squidclient-0:4.6-1+deb10u10+tuxcare.els5.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }