YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified

suse_linux SUSE-SU-SUSE-RU-2025:03081-1: SUSE SLED15 / SLES15 / openSUSE 15 : Recommended update for perl-YAML-LibYAML (Moderate) (SUSE-SU-SUSE-RU-2025:03081-1)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:9330 advisory.

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified     (CVE-2025-40908)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:9329 advisory.

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

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

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

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:01885-2 advisory.

    - CVE-2025-40908: YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be     modified (bsc#1243902)

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

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

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-7632-1 advisory.

    It was discovered that YAML-LibYAML incorrectly handled certain file names. An attacker could possibly use     this issue to overwrite arbitrary files.

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

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

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2025:9330 advisory.

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

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

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

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2025:9329 advisory.

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

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

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

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:01885-1 advisory.

    - CVE-2025-40908: YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be     modified (bsc#1243902)

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2025:01886-1 advisory.

    - CVE-2025-40908: YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be     modified (bsc#1243902)

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

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

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2025-9329 advisory.

    [1:0.70-2]
    - Use 3-arg form of open in LoadFile (CVE-2025-40908)

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

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

The remote host is affected by the vulnerability described in GLSA-202506-11 (YAML-LibYAML: Shell injection)

    YAML-LibYAML uses the legacy '2-arg' open() call which is susceptible to shell injection via malicious     filenames.

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

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

The remote Oracle Linux 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2025-9330 advisory.

    [1:0.82-6.1]
    - Use 3-arg form of open in LoadFile (CVE-2025-40908)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1036 advisory.

    YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified     (CVE-2025-40908)

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

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:9329 advisory.

    Kirill Siminov's libyaml is arguably the best YAML implementation. The C library is written precisely to     the YAML 1.1 specification. It was originally bound to Python and was later bound to Ruby.

    Security Fix(es):

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:9338 advisory.

    Kirill Siminov's libyaml is arguably the best YAML implementation. The C library is written precisely to     the YAML 1.1 specification. It was originally bound to Python and was later bound to Ruby.

    Security Fix(es):

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:9330 advisory.

    Kirill Siminov's libyaml is arguably the best YAML implementation. The C library is written precisely to     the YAML 1.1 specification. It was originally bound to Python and was later bound to Ruby.

    Security Fix(es):

    * yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Severity
266575	RockyLinux 9 : perl-YAML-LibYAML (RLSA-2025:9330)	Nessus	Rocky Linux Local Security Checks	critical
246509	Linux Distros Unpatched Vulnerability : CVE-2025-40908	Nessus	Misc.	critical
243168	RockyLinux 8 : perl-YAML-LibYAML (RLSA-2025:9329)	Nessus	Rocky Linux Local Security Checks	critical
242010	SUSE SLES12 Security Update : perl-YAML-LibYAML (SUSE-SU-2025:01885-2)	Nessus	SuSE Local Security Checks	critical
241682	Ubuntu 22.04 LTS / 24.04 LTS : YAML-LibYAML vulnerability (USN-7632-1)	Nessus	Ubuntu Local Security Checks	critical
241290	AlmaLinux 9 : perl-YAML-LibYAML (ALSA-2025:9330)	Nessus	Alma Linux Local Security Checks	critical
240952	AlmaLinux 8 : perl-YAML-LibYAML (ALSA-2025:9329)	Nessus	Alma Linux Local Security Checks	critical
240833	SUSE SLES12 Security Update : perl-YAML-LibYAML (SUSE-SU-2025:01885-1)	Nessus	SuSE Local Security Checks	critical
240754	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : perl-YAML-LibYAML (SUSE-SU-2025:01886-1)	Nessus	SuSE Local Security Checks	critical
240510	Oracle Linux 8 : perl-YAML-LibYAML (ELSA-2025-9329)	Nessus	Oracle Linux Local Security Checks	critical
240460	GLSA-202506-11 : YAML-LibYAML: Shell injection	Nessus	Gentoo Local Security Checks	critical
240440	Oracle Linux 9 : perl-YAML-LibYAML (ELSA-2025-9330)	Nessus	Oracle Linux Local Security Checks	critical
240310	Amazon Linux 2023 : perl-YAML-LibYAML (ALAS2023-2025-1036)	Nessus	Amazon Linux Local Security Checks	critical
240265	RHEL 8 : perl-YAML-LibYAML (RHSA-2025:9329)	Nessus	Red Hat Local Security Checks	critical
240263	RHEL 9 : perl-YAML-LibYAML (RHSA-2025:9338)	Nessus	Red Hat Local Security Checks	critical
240261	RHEL 9 : perl-YAML-LibYAML (RHSA-2025:9330)	Nessus	Red Hat Local Security Checks	critical

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