CVE-2026-53792rsync < 3.5.0 Out-of-Bounds Read via Zero-Length Checksum Block

Açıklama

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.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• GitHub Security Advisory (GHSA-cg57-rp9g-56hw) vendor-advisoryVendor Advisory
• rsync 3.5.0 Release Notes release-notesRelease Notes
• https://www.vulncheck.com/advisories/rsync-out-of-bounds-read-via-zero-length-checksum-block third-party-advisoryThird Party Advisory