A flaw was found in the rsync daemon which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

redhat RHSA-2025:0325: RHSA-2025:0325: rsync security update (Important)

redhat RHSA-2025:0324: RHSA-2025:0324: rsync security update (Important)

The version of rsync installed on the remote host is prior to 3.0.6-12.15. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2025-1954 advisory.

    Placeholder CVE. Details forthcoming (CVE-2024-12085)

    Placeholder CVE. Details forthcoming (CVE-2024-12086)

    Placeholder CVE. Details forthcoming (CVE-2024-12087)

    Placeholder CVE. Details forthcoming (CVE-2024-12088)

    Placeholder CVE. Details forthcoming (CVE-2024-12747)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4015 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4015-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                    Thorsten Alteholz     January 14, 2025                              https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : rsync     Version        : 3.2.3-4+deb11u2     CVE ID         : 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-2024-12085

        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 Debian 11 bullseye, these problems have been fixed in version     3.2.3-4+deb11u2.

    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 LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of rsync installed on the remote host is prior to 3.4.0. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-014-01 advisory.

    New rsync packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the rsync security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7206-1 advisory.

    Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync did not properly handle checksum     lengths. An attacker could use this issue to execute arbitrary code. (CVE-2024-12084)

    Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync compared checksums with     uninitialized memory. An attacker could exploit this issue to leak sensitive information. (CVE-2024-12085)

    Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync incorrectly handled file     checksums. A malicious server could use this to expose arbitrary client files. (CVE-2024-12086)

    Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync mishandled symlinks for some     settings. An attacker could exploit this to write files outside the intended directory. (CVE-2024-12087)

    Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync failed to verify symbolic link     destinations for some settings. An attacker could exploit this for path traversal attacks.
    (CVE-2024-12088)

    Aleksei Gorban discovered a race condition in rsync's handling of symbolic links. An attacker could use     this to access sensitive information or escalate privileges. (CVE-2024-12747)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of rsync installed on the remote host is prior to 3.1.2-11. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2730 advisory.

    Placeholder CVE. Details forthcoming (CVE-2024-12085)

    Placeholder CVE. Details forthcoming (CVE-2024-12086)

    Placeholder CVE. Details forthcoming (CVE-2024-12087)

    Placeholder CVE. Details forthcoming (CVE-2024-12088)

    Placeholder CVE. Details forthcoming (CVE-2024-12747)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-800 advisory.

    Placeholder CVE. Details forthcoming (CVE-2024-12085)

    Placeholder CVE. Details forthcoming (CVE-2024-12086)

    Placeholder CVE. Details forthcoming (CVE-2024-12087)

    Placeholder CVE. Details forthcoming (CVE-2024-12088)

    Placeholder CVE. Details forthcoming (CVE-2024-12747)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5843 advisory.

    - -------------------------------------------------------------------------     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
    - -------------------------------------------------------------------------

    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

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
214182	Amazon Linux AMI : rsync (ALAS-2025-1954)	Nessus	Amazon Linux Local Security Checks	high
214147	Debian dla-4015 : rsync - security update	Nessus	Debian Local Security Checks	high
214145	Slackware Linux 15.0 / current rsync Multiple Vulnerabilities (SSA:2025-014-01)	Nessus	Slackware Local Security Checks	high
214143	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : rsync vulnerabilities (USN-7206-1)	Nessus	Ubuntu Local Security Checks	high
214141	Amazon Linux 2 : rsync (ALAS-2025-2730)	Nessus	Amazon Linux Local Security Checks	high
214140	Amazon Linux 2023 : rsync, rsync-daemon (ALAS2023-2025-800)	Nessus	Amazon Linux Local Security Checks	high
214097	Debian dsa-5843 : rsync - security update	Nessus	Debian Local Security Checks	high

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