Detections
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Unity Linux 20.1060e / 20.1070e Security Update: curl (UTSA-2026-017507)
medium Nessus Plugin ID 313778
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-2026-017507 advisory.curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single static variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.
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?ad3734af
Plugin Details
Severity: Medium
ID: 313778
File Name: unity_linux_UTSA-2026-017507.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: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2021-22897
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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-2021-22897