Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.

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

  - Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers     to perform Sandbox Escape via a crafted script file. (CVE-2021-44964)

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

An update of the lua package has been released.

The remote Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2023:0957 advisory.

  - Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial     of Service via a crafted script file. (CVE-2021-43519)

  - Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers     to perform Sandbox Escape via a crafted script file. (CVE-2021-44964)

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1211 advisory.

    The lua packages provide support for Lua, a powerful light-weight programming language designed for     extending applications. Lua is also frequently used as a general-purpose, stand-alone language.

    The following packages have been upgraded to a later upstream version: lua (5.4.4).

    Security Fix(es):

    * lua: use after free allows Sandbox Escape (CVE-2021-44964)

    * lua: stack overflow in lua_resume of ldo.c allows a DoS via a crafted script file (CVE-2021-43519)

    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 these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:0957 advisory.

  - Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial     of Service via a crafted script file. (CVE-2021-43519)

  - Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers     to perform Sandbox Escape via a crafted script file. (CVE-2021-44964)

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

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-0957 advisory.

    - Resolves CVE-2021-43519
    - Resolves CVE-2021-44964
    - Fix up CVE-2022-33099 patch

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:0957 advisory.

    The lua packages provide support for Lua, a powerful light-weight programming language designed for     extending applications. Lua is also frequently used as a general-purpose, stand-alone language.

    Security Fix(es):

    * lua: use after free allows Sandbox Escape (CVE-2021-44964)

    * lua: stack overflow in lua_resume of ldo.c allows a DoS via a crafted script file (CVE-2021-43519)

    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 these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
224188	Linux Distros Unpatched Vulnerability : CVE-2021-44964	Nessus	Misc.	medium
203238	Photon OS 4.0: Lua PHSA-2022-4.0-0168	Nessus	PhotonOS Local Security Checks	medium
173996	Rocky Linux 9 : lua (RLSA-2023:0957)	Nessus	Rocky Linux Local Security Checks	medium
172546	RHEL 9 : lua (RHSA-2023:1211)	Nessus	Red Hat Local Security Checks	medium
172007	AlmaLinux 9 : lua (ALSA-2023:0957)	Nessus	Alma Linux Local Security Checks	medium
171991	Oracle Linux 9 : lua (ELSA-2023-0957)	Nessus	Oracle Linux Local Security Checks	medium
171975	RHEL 9 : lua (RHSA-2023:0957)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2021-44964

medium

Tenable Plugins

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medium

medium

medium

medium

medium

medium