{"id":"DEBIAN-CVE-2026-53792","details":"rsync before 3.5.0 contains an out-of-bounds read vulnerability in the sender-side block matching logic that allows a malicious receiver to trigger memory access before the start of an allocated buffer by sending a crafted checksum block with a length of zero. Attackers can send a specially crafted checksum set containing a zero-length block to cause a negative offset calculation during delta computation, resulting in an out-of-bounds read of file data buffer memory on the sender side.","modified":"2026-09-29T11:02:54.001280495Z","published":"2026-08-13T15:19:43.527Z","upstream":["CVE-2026-53792"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-53792"}],"affected":[{"package":{"name":"rsync","ecosystem":"Debian:12","purl":"pkg:deb/debian/rsync?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.7-1","3.2.7-1+deb12u1","3.2.7-1+deb12u2","3.2.7-1+deb12u3","3.2.7-1+deb12u4","3.2.7-1+deb12u5","3.2.7-1+deb12u6","3.3.0+ds1-1","3.3.0+ds1-2","3.3.0+ds1-3","3.3.0+ds1-4","3.3.0-1","3.4.1+ds1-1","3.4.1+ds1-2","3.4.1+ds1-3","3.4.1+ds1-4","3.4.1+ds1-4~exp1","3.4.1+ds1-4~exp2","3.4.1+ds1-5","3.4.1+ds1-5~exp1","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1","3.5.0+ds1-1","3.5.0+ds1-2","3.5.0+ds1-3","3.5.1+ds1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53792.json"}},{"package":{"name":"rsync","ecosystem":"Debian:13","purl":"pkg:deb/debian/rsync?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+ds1-0+deb13u1"}]}],"versions":["3.4.1+ds1-5","3.4.1+ds1-5+deb13u1","3.4.1+ds1-5+deb13u2","3.4.1+ds1-5+deb13u3","3.4.1+ds1-5+deb13u4","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53792.json"}},{"package":{"name":"rsync","ecosystem":"Debian:14","purl":"pkg:deb/debian/rsync?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+ds1-1"}]}],"versions":["3.4.1+ds1-5","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53792.json"}}],"schema_version":"1.9.0"}