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

  - 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)

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.

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

  - 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)

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-7025 advisory.

    - Fix HTTP response splitting in CGI.
      Resolves: CVE-2021-33621
    - Fix Buffer overrun in String-to-Float conversion.
      Resolves: CVE-2022-28739
    - Fix ReDoS vulnerability in URI.
      Resolves: CVE-2023-28755
    - Fix ReDoS vulnerability in Time.
      Resolves: CVE-2023-28756
    - Fix by adding length limit option for methods that parses date strings.
      Resolves: CVE-2021-41817
    - CGI::Cookie.parse no longer decodes cookie names to prevent spoofing security       prefixes in cookie names.
      Resolves: CVE-2021-41819
    - Properly fix command injection vulnerability in Rdoc.
      Related: CVE-2021-31799
    - Fix command injection vulnerability in RDoc.
      Resolves: CVE-2021-31799
    - Fix StartTLS stripping vulnerability in Net::IMAP       Resolves: CVE-2021-32066
    - Fix FTP PASV command response can cause Net::FTP to connect to arbitrary host.
      Resolves: CVE-2021-31810
    - Fix CVE-2013-4073.
    - Fix object taint bypassing in DL and Fiddle (CVE-2013-2065).
    - Fix Hash-flooding DoS vulnerability on MurmurHash function       (CVE-2012-5371)
    - Don't create files when NUL-containing path name is passed       (bug 865940, CVE-2012-4522)
    - Patch from trunk for CVE-2012-4464, CVE-2012-4466
    - Randomize hash on process startup (CVE-2011-4815, bug 750564)
    - CVE-2011-2686 is fixed in this version (bug 722415)
    - CVE-2010-0541 (bug 587731) is fixed in this version
    - CVE-2009-4492 ruby WEBrick log escape sequence (bug 554485)
    - New patchlevel fixing CVE-2009-1904
    - Fix regression in CVE-2008-3790 (#485383)
    - CVE-2008-5189: CGI header injection.
    - CVE-2008-3790: DoS vulnerability in the REXML module.
    - Security fixes.
      - CVE-2008-3655: Ruby does not properly restrict access to critical                        variables and methods at various safe levels.
      - CVE-2008-3656: DoS vulnerability in WEBrick.
      - CVE-2008-3657: Lack of taintness check in dl.
      - CVE-2008-1447: DNS spoofing vulnerability in resolv.rb.
      - CVE-2008-3443: Memory allocation failure in Ruby regex engine.
    - Security fixes. (#452295)
      - CVE-2008-1891: WEBrick CGI source disclosure.
      - CVE-2008-2662: Integer overflow in rb_str_buf_append().
      - CVE-2008-2663: Integer overflow in rb_ary_store().
      - CVE-2008-2664: Unsafe use of alloca in rb_str_format().
      - CVE-2008-2725: Integer overflow in rb_ary_splice().
      - CVE-2008-2726: Integer overflow in rb_ary_splice().
    - ruby-1.8.6.111-CVE-2007-5162.patch: removed.
    - Security fix for CVE-2008-1145.
    - ruby-1.8.6.111-CVE-2007-5162.patch: Update a bit with backporting the changes        at trunk to enable the fix without any modifications on the users' scripts.
       Note that Net::HTTP#enable_post_connection_check isn't available anymore.
       If you want to disable this post-check, you should give OpenSSL::SSL::VERIFY_NONE        to Net::HTTP#verify_mode= instead of.
    - ruby-1.8.6-CVE-2007-5162.patch: security fix for Net::HTTP that is       insufficient verification of SSL certificate.
    - ruby-1.8.5-cgi-CVE-2006-5467.patch: fix a CGI multipart parsing bug that       causes the denial of service. (#212396)
    - security fixes [CVE-2006-3694]
      - ruby-1.8.4-fix-insecure-dir-operation.patch:
      - ruby-1.8.4-fix-insecure-regexp-modification.patch: fixed the insecure         operations in the certain safe-level restrictions. (#199538)
      - ruby-1.8.4-fix-alias-safe-level.patch: fixed to not bypass the certain         safe-level restrictions. (#199543)

Tenable has extracted the preceding description block directly from the Oracle 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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:1576 advisory.

    * 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 (AlmaLinux-29048)
    * ruby: Ruby cannot read private key in FIPS mode on AlmaLinux 9 (AlmaLinux-12437)

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 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.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-3500 advisory.

    ruby     [3.0.7-143]
    - Fix Zlib test failures on s390x due to HW acceleration       Related: RHEL-36189

    [3.0.7-142]
    - Upgrade to Ruby 3.0.7.
      Resolves: RHEL-36189
    - Fix HTTP response splitting in CGI.
      Resolves: RHEL-36193
    - Fix ReDoS vulnerability in URI.
      Resolves: RHEL-36196
    - Fix ReDoS vulnerability in Time.
      Resolves: RHEL-36205
    - Fix buffer overread vulnerability in StringIO.
      Resolves: RHEL-36198
    - Fix RCE vulnerability with .rdoc_options in RDoc.
      Resolves: RHEL-36200
    - Fix arbitrary memory address read vulnerability with Regex search.
      Resolves: RHEL-36203

    rubygem-abrt     rubygem-mysql2     rubygem-pg

Tenable has extracted the preceding description block directly from the Oracle 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 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-20230302.1011 advisory.

  - Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11,     5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server     for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J     through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using     a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to     recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown     vectors. (CVE-2008-5161)

  - 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)

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

ID	Name	Product	Family	Published	Updated	Severity
177151	EulerOS Virtualization 3.0.6.0 : ruby (EulerOS-SA-2023-2248)	Nessus	Huawei Local Security Checks	6/13/2023	6/13/2023	high
175248	EulerOS 2.0 SP11 : ruby (EulerOS-SA-2023-1768)	Nessus	Huawei Local Security Checks	5/8/2023	5/8/2023	high
172727	EulerOS 2.0 SP10 : ruby (EulerOS-SA-2023-1540)	Nessus	Huawei Local Security Checks	3/19/2023	8/30/2023	high
186102	Oracle Linux 8 : ruby:2.5 (ELSA-2023-7025)	Nessus	Oracle Linux Local Security Checks	11/21/2023	11/2/2024	high
192894	AlmaLinux 9 : ruby:3.1 (ALSA-2024:1576)	Nessus	Alma Linux Local Security Checks	4/3/2024	1/13/2025	high
192949	Rocky Linux 9 : ruby:3.1 (RLSA-2024:1576)	Nessus	Rocky Linux Local Security Checks	4/5/2024	4/5/2024	high
198281	Oracle Linux 8 : ruby:3.0 (ELSA-2024-3500)	Nessus	Oracle Linux Local Security Checks	6/1/2024	11/2/2024	high
187269	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20230302.1011)	Nessus	Misc.	12/22/2023	2/19/2025	low

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