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

  - UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked
    (called from encode). Exploitation can, for example, use a large amount of indentation. (CVE-2021-45958)

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:2134-1 advisory.

    - CVE-2021-45958: Fixed a stack-based buffer overflow in Buffer_AppendIndentUnchecked (bsc#1194261).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue 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 Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-6629-2 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 this issue but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2929 advisory.

  - UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked     (called from encode). Exploitation can, for example, use a large amount of indentation. (CVE-2021-45958)

Note that Nessus has not tested for this issue 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.

  - UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked     (called from encode). Exploitation can, for example, use a large amount of indentation. (CVE-2021-45958)

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

ID	Name	Product	Family	Published	Updated	Severity
414517	SCA: security update for ujson (GHSA-fh56-85cw-5pq6)	Tenable Cloud Security	SCA Checks	1/23/2025	7/2/2026	medium
414517	SCA: security update for ujson (GHSA-fh56-85cw-5pq6)	Tenable Self-Hosted Container Security	SCA Checks	1/23/2025	7/2/2026	medium
406716	Alpine: py3-ujson: security update to 5.2.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	medium
406716	Alpine: py3-ujson: security update to 5.2.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	medium
175535	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python-ujson (SUSE-SU-2023:2134-1)	Nessus	SuSE Local Security Checks	5/13/2023	6/25/2026	medium
190410	Ubuntu 16.04 LTS / 18.04 LTS / 22.04 LTS : UltraJSON vulnerabilities (USN-6629-1)	Nessus	Ubuntu Local Security Checks	2/12/2024	8/28/2024	high
190520	Ubuntu 20.04 LTS : UltraJSON vulnerability (USN-6629-2)	Nessus	Ubuntu Local Security Checks	2/14/2024	10/29/2024	medium
158510	Debian DLA-2929-1 : ujson - LTS security update	Nessus	Debian Local Security Checks	3/2/2022	11/7/2023	medium
230214	Linux Distros Unpatched Vulnerability : CVE-2021-45958	Nessus	Misc.	3/5/2025	9/2/2026	medium

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