A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade rsync | Aug 22, 2024 | May 27, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | May 27, 2021 |
| Debian | — | Upgrade rsync | Jul 30, 2024 | May 27, 2021 |
| Dell Powerstore Dsa2024225 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | May 29, 2024 |
| Dell Powerstore Dsa2024287 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Jul 2, 2024 |
| Dell Powerstore Dsa2024336 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Aug 1, 2024 |
| Gentoo Linux | — | Upgrade net-misc/rsync. | May 10, 2024 | May 27, 2021 |
| Oracle Solaris | — | Upgrade network/rsync to version 3.2.3-11.4.35.0.1.94.3 on Solaris 11.4 | Jul 21, 2021 | May 27, 2021 |
| Suse | — | Upgrade rsync | Aug 9, 2024 | May 27, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 27, 2021 |
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