LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4283 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4283-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     August 25, 2025                               https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : luajit     Version        : 2.1.0~beta3+dfsg-5.3+deb11u1     CVE ID         : CVE-2019-19391 CVE-2020-15890 CVE-2020-24372 CVE-2024-25176                      CVE-2024-25177 CVE-2024-25178     Debian Bug     : 946053 966148

    Multiple vulnerabilities were found in luajit, a just in time compiler     for the Lua programming language, which could lead to denial of service.

    CVE-2019-19391

        It was discovered that debug.getinfo() has a type confusion issue         that leads to arbitrary memory write or read operations, because         certain cases involving valid stack levels and `>` options are         mishandled.

        NOTE: The LuaJIT project owner disputes the vulnerability and states         that the debug library is unsafe by design.

    CVE-2020-15890

        Yongheng Chen discovered an out-of-bounds read because `__gc`         handler frame traversal is mishandled.

    CVE-2020-24372

        Yongheng Chen discovered out-of-bounds read in lj_err_run().

    CVE-2024-25176

        Kutyavin Maxim discovered a stack-buffer-overflow in         lj_strfmt_wfnum().

    CVE-2024-25177

        Kutyavin Maxim discovered an unsinking of IR_FSTORE for NULL         metatable.

    CVE-2024-25178

        Kutyavin Maxim discovered an out-of-bounds read in the         stack-overflow handler.

    For Debian 11 bullseye, these problems have been fixed in version     2.1.0~beta3+dfsg-5.3+deb11u1.

    We recommend that you upgrade your luajit packages.

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

    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     Attachment:
    signature.asc     Description: PGP signature

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

  - LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.
    (CVE-2020-15890)

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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.
    (CVE-2020-15890)

The remote Ubuntu 16.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4501-1 advisory.

    It was discovered that an out-of-bounds read existed in LuaJIT. An

    attacker could use this to cause a denial of service (application crash) or possibly expose sensitive     information. (CVE-2020-15890)

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.

An issue has been found in luajit, a just in time compiler for Lua.

An out-of-bounds read could happen because __gc handler frame traversal is mishandled.

For Debian 9 stretch, this problem has been fixed in version 2.0.4+dfsg-1+deb9u1.

We recommend that you upgrade your luajit packages.

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

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
255190	Debian dla-4283 : libluajit-5.1-2 - security update	Nessus	Debian Local Security Checks	critical
223427	Linux Distros Unpatched Vulnerability : CVE-2020-15890	Nessus	Misc.	high
405481	Alpine: luajit: security update to 2.2.0-r3	Tenable Cloud Security	Alpine Linux Local Security Checks	high
405481	Alpine: luajit: security update to 2.2.0-r3	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
400321	Alpine: moonjit: security update to 2.2.0-r2 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	high
400321	Alpine: moonjit: security update to 2.2.0-r2 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
140604	Ubuntu 16.04 LTS : LuaJIT vulnerability (USN-4501-1)	Nessus	Ubuntu Local Security Checks	high
139096	Debian DLA-2296-1 : luajit security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2020-15890

high

Tenable Plugins

critical

high

high

high

high

high

high

high