UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.

The remote host is affected by the vulnerability described in GLSA-202403-03 (UltraJSON: Multiple Vulnerabilities)

  - UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected     versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate     characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this     allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from     untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as     the standard library's `json` module does, preserving them in the parsed output. Users are advised to     upgrade. There are no known workarounds for this issue. (CVE-2022-31116)

  - UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions     prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to     get freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger     from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON     5.4.0. There are no known workarounds for this issue. (CVE-2022-31117)

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 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6629-3 advisory.

    USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu     20.04 LTS.



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.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6629-1 advisory.

    It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An     attacker could possibly use this issue to crash the program, resulting in a denial of service.
    (CVE-2021-45958)

    Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly     use this issue to cause key confusion and overwrite values in dictionaries. (CVE-2022-31116)

    It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string     decoding. An attacker could possibly use this issue to corrupt memory. (CVE-2022-31117)

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.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2022:8864 advisory.

    UltraJSON is an ultra fast JSON encoder and decoder

    Security Fix(es):

    * improper decoding of escaped surrogate characters may lead to string     corruption key confusion or value overwriting (CVE-2022-31116)

    * Potential double free of buffer during string decoding (CVE-2022-31117)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page 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 Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2022:8850 advisory.

    UltraJSON is an ultra fast JSON encoder and decoder

    Security Fix(es):

    * improper decoding of escaped surrogate characters may lead to string     corruption key confusion or value overwriting (CVE-2022-31116)

    * Potential double free of buffer during string decoding (CVE-2022-31117)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2673-1 advisory.

  - UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected     versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate     characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this     allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from     untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as     the standard library's `json` module does, preserving them in the parsed output. Users are advised to     upgrade. There are no known workarounds for this issue. (CVE-2022-31116)

  - UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions     prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to     get freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger     from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON     5.4.0. There are no known workarounds for this issue. (CVE-2022-31117)

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
191479	GLSA-202403-03 : UltraJSON: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
190582	Ubuntu 20.04 LTS : UltraJSON vulnerabilities (USN-6629-3)	Nessus	Ubuntu Local Security Checks	high
190410	Ubuntu 16.04 LTS / 18.04 LTS / 22.04 LTS : UltraJSON vulnerabilities (USN-6629-1)	Nessus	Ubuntu Local Security Checks	high
170380	RHEL 8 : Red Hat OpenStack Platform 16.1.9 (python-ujson) (RHSA-2022:8864)	Nessus	Red Hat Local Security Checks	high
170362	RHEL 8 : Red Hat OpenStack Platform 16.2.4 (python-ujson) (RHSA-2022:8850)	Nessus	Red Hat Local Security Checks	high
163879	SUSE SLED15 / SLES15 Security Update : python-ujson (SUSE-SU-2022:2673-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2022-31116

high

Tenable Plugins

high

high

high

high

high

high