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Test your applicationsUpgrade Ubuntu:18.04
rsync
to version 3.1.2-2.1ubuntu1.6+esm1 or higher.
Note: Versions mentioned in the description apply only to the upstream rsync
package and not the rsync
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:18.04
relevant fixed versions and status.
A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the privileges of the rsync process, an attacker could leak sensitive information, potentially leading to privilege escalation.