An update of the ruby package has been released.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:2588 advisory.

    * rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

    * ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

    * ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

    * ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

    * rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

    * ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

    * ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

    * ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

    * ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2588 advisory.

    Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text     files and to perform system management tasks.

    The following packages have been upgraded to a later upstream version: ruby (2.6.7). (BZ#1952627)

    Security Fix(es):

    * rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code     (CVE-2019-3881)

    * ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

    * ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication     (CVE-2019-16201)

    * ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

    * rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

    * ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

    * ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

    * ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

    * ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Resolv::DNS: ruby:2.6/ruby: timeouts if multiple IPv6 name servers are given and address contains     leading zero [rhel-8] (BZ#1954968)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090111 advisory.

    An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls     BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit     the requested size, but no data is copied. Thus, the buffer string provides the previous value of the     heap. This may expose possibly sensitive data from the interpreter.

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
136581	Photon OS 3.0: Ruby PHSA-2020-3.0-0089	Nessus	PhotonOS Local Security Checks	2020/5/13	2025/8/22	high
179413	AlmaLinux 8 : ruby:2.6 (ALSA-2021:2588)	Nessus	Alma Linux Local Security Checks	2023/8/7	2025/1/13	high
151143	RHEL 8 : ruby:2.6 (RHSA-2021:2588)	Nessus	Red Hat Local Security Checks	2021/6/29	2025/1/13	high
349065	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: ruby (UTSA-2026-090111)	Nessus	Unity Linux Local Security Checks	2026/9/22	2026/9/22	medium

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