Fix of 6 CVEs

{
  "id": "c79caf830a59f9ff8dbec94a839e4030009eebab4f829bf9b5d9c2daefbbbd38",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789735848",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix of 6 CVEs",
    "summary": "* SECURITY UPDATE: unbounded hash-chain walk in the delta-transfer matcher - debian/patches/CVE-2026-70453.patch: bound the hash_search() chain walk in match.c so a crafted checksum set cannot drive quadratic CPU use - CVE-2026-70453 * SECURITY UPDATE: peer-supplied I/O timeout accepted as non-positive - debian/patches/CVE-2026-70462.patch: reject a non-positive MSG_IO_TIMEOUT from the peer in io.c - CVE-2026-70462 * SECURITY UPDATE: unbounded daemon pre-transfer handshake - debian/patches/CVE-2026-70464.patch: bound the pre-transfer handshake with a timeout in clientserver.c and io.c - CVE-2026-70464 * SECURITY UPDATE: malicious-peer protocol input and checksum-slot lifetime - debian/patches/CVE-2026-70458-1.patch: daemon robustness against malicious-peer protocol input - debian/patches/CVE-2026-70458-2.patch: guard the F_SUM checksum-slot lifetime in hlink.c and main.c - debian/patches/CVE-2026-70458-3-copy-devices.patch: extend the same guard to the copy-devices path - CVE-2026-70458 * SECURITY UPDATE: daemon authentication, access and argument hardening - debian/patches/CVE-2026-53790-1.patch: harden daemon authentication, access, socket and argument handling - debian/patches/CVE-2026-53790-2-shell-chars.patch: confine operator- and peer-supplied paths to the served tree and reject shell metacharacters - debian/patches/CVE-2026-53790-3-uninit.patch: fix a safe_arg() uninitialized-byte leak in options.c - CVE-2026-53790 * SECURITY UPDATE: inner-module escape for a daemon m",
    "evidence": "osv:CLSA-2026-1789735848",
    "products": [
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.3-8ubuntu0.9+tuxcare.els11",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789735848",
      "aliases": [
        "CLSA-2026-1789735848"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.3-8ubuntu0.9+tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:deb/tuxcare/rsync?distro=ubuntu-20.04",
            "ecosystem": "TuxCare:Ubuntu:20.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789735848.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:52.540591913Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-53790",
        "CVE-2026-53793",
        "CVE-2026-70453",
        "CVE-2026-70458",
        "CVE-2026-70462",
        "CVE-2026-70464"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1789735848.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53790",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53793",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70453",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70458",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70462",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70464"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-53790",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-53793",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70453",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70458",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70462",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70464",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 450209,
  "published_at": "2026-09-18T12:51:03+00:00"
}