This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-70456 →

DEBIAN-CVE-2026-70456

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent...

Original description

The description as published by the source.

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 rsync

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 rsync

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+ds1-0+deb13u1"}]}]

Debian:14 rsync

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+ds1-1"}]}]

References

advisory security-tracker.debian.org