Detections
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Unity Linux 20.1060e / 20.1070e Security Update: curl (UTSA-2026-017661)
low Nessus Plugin ID 313816
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017661 advisory.curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected curl package.See Also
http://www.nessus.org/u?26e2ab9a
Plugin Details
Severity: Low
ID: 313816
File Name: unity_linux_UTSA-2026-017661.nasl
Version: 1.1
Type: Local
Published: 5/11/2026
Updated: 5/11/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 2.2
CVSS v2
Risk Factor: Low
Base Score: 2.6
Temporal Score: 2
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2021-22898
CVSS v3
Risk Factor: Low
Base Score: 3.1
Temporal Score: 2.8
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/11/2026
Vulnerability Publication Date: 6/8/2021
Reference Information
CVE: CVE-2021-22898