According to the versions of the ruby packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1. (CVE-2023-28755)

  - A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to Time objects. The fixed versions are 0.1.1 and 0.2.2. (CVE-2023-28756)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1431 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 (3.1). (RHEL-28565)

    Security Fix(es):

    * ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)

    * ruby: ReDoS vulnerability in URI (CVE-2023-28755)

    * ruby: ReDoS vulnerability - upstream's incomplete fix for CVE-2023-28755 (CVE-2023-36617)

    * ruby: ReDoS vulnerability in Time (CVE-2023-28756)

    Bug Fix(es):

    * ruby/rubygem-irb: IRB has hard dependency on rubygem-rdoc (RHEL-28569)

    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.

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 Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:1576 advisory.

  - The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response     splitting. This is relevant to applications that use untrusted user input either to generate an HTTP     response or to create a CGI::Cookie object. (CVE-2021-33621)

  - A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1. (CVE-2023-28755)

  - A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to Time objects. The fixed versions are 0.1.1 and 0.2.2. (CVE-2023-28756)

  - A ReDoS issue was discovered in the URI component before 0.12.2 for Ruby. The URI parser mishandles     invalid URLs that have specific characters. There is an increase in execution time for parsing strings to     URI objects with rfc2396_parser.rb and rfc3986_parser.rb. NOTE: this issue exists becuse of an incomplete     fix for CVE-2023-28755. Version 0.10.3 is also a fixed version. (CVE-2023-36617)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the ruby package has been released.

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2023-6217:01 advisory.

    * ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
      * ruby: ReDoS vulnerability in URI (CVE-2023-28755)
      * ruby: ReDoS vulnerability in Time (CVE-2023-28756)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0234 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2021-33621:
    The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response     splitting. This is relevant to applications that use untrusted user input either to generate an HTTP     response or to create a CGI::Cookie object.

    CVE-2023-28755:
    A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.

    CVE-2023-28756:
    A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.

    CVE-2024-27280:
    A buffer overread flaw was found in rubygem StringIO. The ungetbyte and ungetc methods on a StringIO     object can read past the end of a string, and a subsequent call to StringIO.gets may return the memory     value.

    CVE-2024-27281:
    A flaw was found in Rubygem RDoc. When parsing .rdoc_options used for configuration in RDoc as a YAML file     there are no restrictions on the classes that can be restored. This issue may lead to object injection,     resulting in remote code execution.

    CVE-2024-27282:
    A flaw was found in Ruby. If attacker-supplied data is provided to the Ruby regex compiler, it is possible     to extract arbitrary heap data relative to the start of the text, including pointers and sensitive     strings.

Tenable has extracted the preceding description block directly from the Tencent 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 AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:3500 advisory.

    * ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
    * ruby: ReDoS vulnerability in URI (CVE-2023-28755)
    * ruby: ReDoS vulnerability in Time (CVE-2023-28756)
    * ruby: RCE vulnerability with .rdoc_options in RDoc (CVE-2024-27281)
    * ruby: Buffer overread vulnerability in StringIO (CVE-2024-27280)
    * ruby: Arbitrary memory address read vulnerability with Regex search (CVE-2024-27282)

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 MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8427:02 advisory.

    * ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
      * ruby: ReDoS vulnerability in URI (CVE-2023-28755)
      * ruby: ReDoS vulnerability in Time (CVE-2023-28756)
      * ruby: Buffer overread vulnerability in StringIO (CVE-2024-27280)
      * ruby: RCE vulnerability with .rdoc_options in RDoc (CVE-2024-27281)
      * ruby: Arbitrary memory address read vulnerability with Regex search (CVE-2024-27282)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser     mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing     strings to Time objects. The fixed versions are 0.1.1 and 0.2.2. (CVE-2023-28756)

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

The version of AHV installed on the remote host is prior to 20230302.102005. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20230302.216 advisory.

  - The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path,     leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in     /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an     incomplete fix for CVE-2016-10009. (CVE-2023-38408)

  - A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may     allow an authenticated client to cause a denial of service. (CVE-2023-1667)

  - A vulnerability was found in libssh, where the authentication check of the connecting client can be     bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen     if there is insufficient memory or the memory usage is limited. The problem is caused by the return value     `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call     `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the     cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.
    (CVE-2023-2283)

  - Every `named` instance configured to run as a recursive resolver maintains a cache database holding the     responses to the queries it has recently sent to authoritative servers. The size limit for that cache     database can be configured using the `max-cache-size` statement in the configuration file; it defaults to     90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the     configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets     from the cache, to keep memory use below the configured limit. It has been discovered that the     effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the     resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size`     limit to be significantly exceeded. This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0     through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
    (CVE-2023-2828)

  - Buffer Overflow vulnerability found in SQLite3 v.3.27.1 and before allows a local attacker to cause a     denial of service via a crafted script. (CVE-2020-24736)

Note that Nessus has not tested for these issues 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
188728	EulerOS 2.0 SP11 : ruby (EulerOS-SA-2023-2666)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
192287	RHEL 8 : ruby:3.1 (RHSA-2024:1431)	Nessus	Red Hat Local Security Checks	2024/3/19	2025/4/29	high
192949	Rocky Linux 9 : ruby:3.1 (RLSA-2024:1576)	Nessus	Rocky Linux Local Security Checks	2024/4/5	2024/4/5	high
203921	Photon OS 3.0: Ruby PHSA-2024-3.0-0732	Nessus	PhotonOS Local Security Checks	2024/7/24	2024/7/24	high
293573	MiracleLinux 8 : ruby:2.7 (AXSA:2023-6217:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high
239106	TencentOS Server 3: ruby:3.0 (TSSA-2024:0234)	Nessus	Tencent Local Security Checks	2025/6/16	2025/12/4	critical
198232	AlmaLinux 8 : ruby:3.0 (ALSA-2024:3500)	Nessus	Alma Linux Local Security Checks	2024/5/31	2025/1/13	high
293665	MiracleLinux 9 : ruby-3.0.7-162.el9_4 (AXSA:2024-8427:02)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	critical
226964	Linux Distros Unpatched Vulnerability : CVE-2023-28756	Nessus	Misc.	2025/3/5	2026/4/28	medium
181785	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20230302.216)	Nessus	Misc.	2023/9/22	2025/2/19	critical

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