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 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
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