In MongoDB libbson 1.7.0, 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.

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

    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 remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4812-1 advisory.

    It was discovered that libbson incorrectly validated input length. An attacker could possibly use this     issue to cause a denial of service. This issue affected only Ubuntu 16.04 ESM. (CVE-2017-14227)

    It was discovered that libbson incorrectly handled certain specially crafted bson buffers. An attacker     could possibly use this issue to cause a denial of service. (CVE-2018-16790)

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.

This release fixes a crash whwhen parsing an empty code string of a codewscope type. It also make functions for checking library version available for C++ programs.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This release fixes a crash when parsing an empty code string of a codewscope type.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

mongodb developers report :

In MongoDB libbson 1.7.0, 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.

ID	Name	Product	Family	Severity
235667	Debian dla-4160 : libbson-xs-perl - security update	Nessus	Debian Local Security Checks	high
183155	Ubuntu 16.04 ESM / 18.04 ESM : libbson vulnerabilities (USN-4812-1)	Nessus	Ubuntu Local Security Checks	high
105825	Fedora 27 : libbson (2017-1953158d1f)	Nessus	Fedora Local Security Checks	high
103547	Fedora 25 : libbson (2017-7edc2ea787)	Nessus	Fedora Local Security Checks	high
103521	Fedora 26 : libbson (2017-a4cf96bcca)	Nessus	Fedora Local Security Checks	high
103474	FreeBSD : libbson -- Denial of Service (10214bda-0902-4e3b-a2f9-9a68ef206a73)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2017-14227

high

Tenable Plugins

high

high

high

high

high

high