High [CVE-2026-70458] Memory corruption via crafted file entries
This high-severity Red Hat Linux advisory covers CVE-2026-70458 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7.
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Summary
Memory corruption via crafted file entries. Red Hat rates this important (CVSS 8.2).
Weakness: CWE-787.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 3 more.
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: rsync.
- < 3.0.0
- < 3.5.0
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Disable the rsyncd daemon if unused (systemctl disable --now rsyncd), or strictly limit TCP/873 access to trusted clients via firewall rules. For daemons that must remain active, explicitly set refuse options = checksum in rsyncd.conf to block the demonstrated out-of-bounds write vector. Finally, when operating as a client pulling from untrusted peers, always append the --hard-links (-H) flag to force safe memory allocation and prevent corruption.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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