{ "document": { "aggregate_severity": { "text": "Important" }, "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: receiver process memory disclosure via compressed-token\n integer overflow:\n - debian/patches/els/0004-CVE-2026-43618.patch: cap rx_token at\n MAX_TOKEN_INDEX; reject out-of-range token values.\n - CVE-2026-43618.\n * SECURITY UPDATE: malicious server can enumerate arbitrary client files\n via crafted checksum responses:\n - debian/patches/els/0005-CVE-2024-12086.patch: add secure_relative_open()\n and route the receiver's basis-file open through it.\n - CVE-2024-12086.\n * SECURITY UPDATE: daemon TOCTOU symlink race on parent path components\n when \"use chroot = no\":\n - debian/patches/els/0006-CVE-2026-29518.patch: gate sender/receiver\n opens and chmods through secure_relative_open() / do_chmod_at().\n - CVE-2026-29518.", "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-2026:1779869103", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/advisories/2026/clsa-2026_1779869103.json" } ], "tracking": { "current_release_date": "2026-05-27T08:06:25Z", "generator": { "date": "2026-05-27T08:06:25Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1779869103", "initial_release_date": "2026-05-27T08:06:25Z", "revision_history": [ { "date": "2026-05-27T08:06:25Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2024-12086, CVE-2026-29518, CVE-2026-43618" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian None", "product": { "name": "Debian None", "product_id": "Debian-10", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Debian" } ], "category": "vendor", "name": "Software in the Public Interest, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "rsync-0:3.1.3-6+tuxcare.els2.amd64", "product": { "name": "rsync-0:3.1.3-6+tuxcare.els2.amd64", "product_id": "rsync-0:3.1.3-6+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/rsync@3.1.3-6%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "rsync-0:3.1.3-6+tuxcare.els1.amd64", "product": { "name": "rsync-0:3.1.3-6+tuxcare.els1.amd64", "product_id": "rsync-0:3.1.3-6+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/rsync@3.1.3-6%2Btuxcare.els1?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "rsync-0:3.1.3-6+tuxcare.els2.amd64 as a component of Debian None", "product_id": "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" }, "product_reference": "rsync-0:3.1.3-6+tuxcare.els2.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "rsync-0:3.1.3-6+tuxcare.els1.amd64 as a component of Debian None", "product_id": "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" }, "product_reference": "rsync-0:3.1.3-6+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-29518", "cwe": { "id": "CWE-367", "name": "Time-of-check Time-of-use (TOCTOU) Race Condition" }, "notes": [ { "category": "description", "text": "Rsync versions before 3.4.3 contain a time-of-check to time-of-use (TOCTOU) race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path can exploit this race condition to create or overwrite arbitrary files, potentially modifying sensitive system files and achieving privilege escalation when the daemon runs with elevated privileges. This vulnerability can only be triggered if the chroot setting is false.", "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:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "known_affected": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-29518" } ], "release_date": "2026-05-20T00:00:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-05-27T08:05:10.077668Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103" }, { "category": "none_available", "date": "2026-05-20T00:00:00Z", "details": "Affected", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" }, "products": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-43618", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.", "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:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "known_affected": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-43618" }, { "category": "external", "summary": "https://github.com/RsyncProject/rsync/releases/tag/v3.4.3", "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.4.3" }, { "category": "external", "summary": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-g37v-g3gj-pmwq", "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-g37v-g3gj-pmwq" }, { "category": "external", "summary": "https://www.vulncheck.com/advisories/rsync-integer-overflow-information-disclosure", "url": "https://www.vulncheck.com/advisories/rsync-integer-overflow-information-disclosure" } ], "release_date": "2026-05-20T02:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-05-27T08:05:10.077668Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103" }, { "category": "none_available", "date": "2026-05-20T02:16:00Z", "details": "Affected", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1" }, "products": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2024-12086", "cwe": { "id": "CWE-390", "name": "Detection of Error Condition Without Action" }, "notes": [ { "category": "description", "text": "A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to the server. By sending specially constructed checksum values for arbitrary files, an attacker may be able to reconstruct the data of those files byte-by-byte based on the responses from the client.", "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:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "known_affected": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2024-12086" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHBA-2025:6470", "url": "https://access.redhat.com/errata/RHBA-2025:6470" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:19368", "url": "https://access.redhat.com/errata/RHSA-2026:19368" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:20603", "url": "https://access.redhat.com/errata/RHSA-2026:20603" }, { "category": "external", "summary": "https://access.redhat.com/security/cve/CVE-2024-12086", "url": "https://access.redhat.com/security/cve/CVE-2024-12086" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=2330577", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2330577" }, { "category": "external", "summary": "https://kb.cert.org/vuls/id/952657", "url": "https://kb.cert.org/vuls/id/952657" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2025/01/msg00008.html", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00008.html" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20250131-0002/", "url": "https://security.netapp.com/advisory/ntap-20250131-0002/" }, { "category": "external", "summary": "https://www.kb.cert.org/vuls/id/952657", "url": "https://www.kb.cert.org/vuls/id/952657" }, { "category": "external", "summary": "https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj", "url": "https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj" } ], "release_date": "2025-01-14T18:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-05-27T08:05:10.077668Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779869103" }, { "category": "none_available", "date": "2025-01-14T18:15:00Z", "details": "Affected", "product_ids": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els1.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" }, "products": [ "Debian-10:rsync-0:3.1.3-6+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }