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Debian Security Advisory DSA-5843-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
January 14, 2025                      https://www.debian.org/security/faq
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Package        : rsync
CVE ID         : CVE-2024-12084 CVE-2024-12085 CVE-2024-12086 CVE-2024-12087 
                 CVE-2024-12088 CVE-2024-12747

Several vulnerabilities were discovered in rsync, a fast, versatile,
remote (and local) file-copying tool.

CVE-2024-12084

    Simon Scannell, Pedro Gallegos and Jasiel Spelman discovered a
    heap-based buffer overflow vulnerability due to improper handling of
    attacker-controlled checksum lengths. A remote attacker can take
    advantage of this flaw for code execution.

CVE-2024-12085

    Simon Scannell, Pedro Gallegos and Jasiel Spelman reported a flaw in
    the way rsync compares file checksums, allowing a remote attacker to
    trigger an information leak.

CVE-2024-12086

    Simon Scannell, Pedro Gallegos and Jasiel Spelman discovered a flaw
    which would result in a server leaking contents of an arbitrary file
    from the client's machine.

CVE-2024-12087

    Simon Scannell, Pedro Gallegos and Jasiel Spelman reported a path
    traversal vulnerability in the rsync daemon affecting the
    --inc-recursive option, which could allow a server to write files
    outside of the client's intended destination directory.

CVE-2024-12088

    Simon Scannell, Pedro Gallegos and Jasiel Spelman reported that when
    using the --safe-links option, rsync fails to properly verify if a
    symbolic link destination contains another symbolic link with it,
    resulting in path traversal and arbitrary file write outside of the
    desired directory.

CVE-2024-12747

    Aleksei Gorban "loqpa" discovered a race condition when handling
    symbolic links resulting in an information leak which may enable
    escalation of privileges.

For the stable distribution (bookworm), these problems have been fixed in
version 3.2.7-1+deb12u1.

We recommend that you upgrade your rsync packages.

For the detailed security status of rsync please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/rsync

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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