The bson_strfreev function in the MongoDB C driver library may be susceptible to an integer overflow where the function will try to free memory at a negative offset. This may result in memory corruption. This issue affected libbson versions prior to 1.26.2

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4175 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4175-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                  Roberto C. Snchez     May 20, 2025                                  https://wiki.debian.org/LTS
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    Package        : mongo-c-driver     Version        : 1.17.6-1+deb11u1     CVE ID         : CVE-2021-32050 CVE-2023-0437 CVE-2024-6381 CVE-2024-6383                      CVE-2025-0755

    Multiple vulnerabilities have been discovered in the MongoDB C Driver.

    CVE-2021-32050

        Some MongoDB Drivers may erroneously publish events containing         authentication-related data to a command listener configured by an         application. The published events may contain security-sensitive         data when specific authentication-related commands are executed.
        Without due care, an application may inadvertently expose this         sensitive information, e.g., by writing it to a log file. This issue         only arises if an application enables the command listener feature         (this is not enabled by default).

    CVE-2023-0437

        When calling bson_utf8_validate on some inputs a loop with an exit         condition that cannot be reached may occur, i.e. an infinite loop.

    CVE-2024-6381

        The bson_strfreev function in the MongoDB C driver library may be         susceptible to an integer overflow where the function will try to         free memory at a negative offset. This may result in memory         corruption.

    CVE-2024-6383

        The bson_string_append function in MongoDB C Driver may be         vulnerable to a buffer overflow where the function might attempt to         allocate too small of buffer and may lead to memory corruption of         neighbouring heap memory.

    CVE-2025-0755

        The various bson_append functions in the MongoDB C driver library         may be susceptible to buffer overflow when performing operations         that could result in a final BSON document which exceeds the maximum         allowable size (INT32_MAX), resulting in a segmentation fault and         possible application crash.

    For Debian 11 bullseye, these problems have been fixed in version     1.17.6-1+deb11u1.

    We recommend that you upgrade your mongo-c-driver packages.

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

    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 remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4160 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4160-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                  Roberto C. Snchez     May 09, 2025                                  https://wiki.debian.org/LTS
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    Package        : libbson-xs-perl     Version        : 0.8.4-1+deb11u1     CVE ID         : CVE-2017-14227 CVE-2018-16790 CVE-2023-0437 CVE-2024-6381                      CVE-2024-6383 CVE-2025-0755

    Several vulnerabilities have been found in libbson-xs-perl, the Perl XS     implementation of MongoDB's BSON serialization.

    CVE-2017-14227

        The bson_iter_codewscope function in bson-iter.c miscalculates a         bson_utf8_validate length argument, which allows remote attackers to         cause a denial of service (heap-based buffer over-read in the         bson_utf8_validate function in bson-utf8.c), as demonstrated by         bson-to-json.c.

    CVE-2018-16790

        _bson_iter_next_internal has a heap-based buffer over-read via a         crafted bson buffer.

    CVE-2023-0437

        When calling bson_utf8_validate on some inputs a loop with an exit         condition that cannot be reached may occur, i.e. an infinite loop.

    CVE-2024-6381

        The bson_strfreev function in the MongoDB C driver library may be         susceptible to an integer overflow where the function will try to         free memory at a negative offset. This may result in memory         corruption.

    CVE-2024-6383

        The bson_string_append function in MongoDB C Driver may be         vulnerable to a buffer overflow where the function might attempt to         allocate too small of buffer and may lead to memory corruption of         neighbouring heap memory.

    CVE-2025-0755

        The various bson_append functions in the MongoDB C driver library         may be susceptible to buffer overflow when performing operations         that could result in a final BSON document which exceeds the maximum         allowable size (INT32_MAX), resulting in a segmentation fault and         possible application crash.

    For Debian 11 bullseye, these problems have been fixed in version     0.8.4-1+deb11u1.

    We recommend that you upgrade your libbson-xs-perl packages.

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

    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.

  - The bson_strfreev function in the MongoDB C driver library may be susceptible to an integer overflow where     the function will try to free memory at a negative offset. This may result in memory corruption. This     issue affected libbson versions prior to 1.26.2 (CVE-2024-6381)

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

ID	Name	Product	Family	Severity
236989	Debian dla-4175 : libbson-1.0-0 - security update	Nessus	Debian Local Security Checks	high
235667	Debian dla-4160 : libbson-xs-perl - security update	Nessus	Debian Local Security Checks	high
231227	Linux Distros Unpatched Vulnerability : CVE-2024-6381	Nessus	Misc.	medium

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