openEuler 20.03 LTS SP4 update for ruby



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2025-27219
CVE-2025-27220
CVE-2025-27221
CWE-ID CWE-20
CWE-1333
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

rubygems-devel
Operating systems & Components / Operating system package or component

rubygems
Operating systems & Components / Operating system package or component

rubygem-xmlrpc
Operating systems & Components / Operating system package or component

rubygem-test-unit
Operating systems & Components / Operating system package or component

rubygem-rdoc
Operating systems & Components / Operating system package or component

rubygem-rake
Operating systems & Components / Operating system package or component

rubygem-power_assert
Operating systems & Components / Operating system package or component

rubygem-net-telnet
Operating systems & Components / Operating system package or component

rubygem-minitest
Operating systems & Components / Operating system package or component

rubygem-did_you_mean
Operating systems & Components / Operating system package or component

ruby-irb
Operating systems & Components / Operating system package or component

ruby-help
Operating systems & Components / Operating system package or component

rubygem-psych
Operating systems & Components / Operating system package or component

rubygem-openssl
Operating systems & Components / Operating system package or component

rubygem-json
Operating systems & Components / Operating system package or component

rubygem-io-console
Operating systems & Components / Operating system package or component

rubygem-bigdecimal
Operating systems & Components / Operating system package or component

ruby-devel
Operating systems & Components / Operating system package or component

ruby-debugsource
Operating systems & Components / Operating system package or component

ruby-debuginfo
Operating systems & Components / Operating system package or component

ruby
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU105106

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-27219

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in CGI::Cookie.parse. A remote attacker can send a specially crafted HTTP request to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

rubygems-devel: before 2.7.6-133

rubygems: before 2.7.6-133

rubygem-xmlrpc: before 0.3.0-133

rubygem-test-unit: before 3.2.7-133

rubygem-rdoc: before 6.0.1.1-133

rubygem-rake: before 12.3.0-133

rubygem-power_assert: before 1.1.1-133

rubygem-net-telnet: before 0.1.1-133

rubygem-minitest: before 5.10.3-133

rubygem-did_you_mean: before 1.2.0-133

ruby-irb: before 2.5.8-133

ruby-help: before 2.5.8-133

rubygem-psych: before 3.0.2-133

rubygem-openssl: before 2.1.2-133

rubygem-json: before 2.1.0-133

rubygem-io-console: before 0.4.6-133

rubygem-bigdecimal: before 1.3.4-133

ruby-devel: before 2.5.8-133

ruby-debugsource: before 2.5.8-133

ruby-debuginfo: before 2.5.8-133

ruby: before 2.5.8-133

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1244


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Inefficient regular expression complexity

EUVDB-ID: #VU105107

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-27220

CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions in CGI::Util#escapeElement. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

rubygems-devel: before 2.7.6-133

rubygems: before 2.7.6-133

rubygem-xmlrpc: before 0.3.0-133

rubygem-test-unit: before 3.2.7-133

rubygem-rdoc: before 6.0.1.1-133

rubygem-rake: before 12.3.0-133

rubygem-power_assert: before 1.1.1-133

rubygem-net-telnet: before 0.1.1-133

rubygem-minitest: before 5.10.3-133

rubygem-did_you_mean: before 1.2.0-133

ruby-irb: before 2.5.8-133

ruby-help: before 2.5.8-133

rubygem-psych: before 3.0.2-133

rubygem-openssl: before 2.1.2-133

rubygem-json: before 2.1.0-133

rubygem-io-console: before 0.4.6-133

rubygem-bigdecimal: before 1.3.4-133

ruby-devel: before 2.5.8-133

ruby-debugsource: before 2.5.8-133

ruby-debuginfo: before 2.5.8-133

ruby: before 2.5.8-133

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1244


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Information disclosure

EUVDB-ID: #VU105105

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-27221

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to URI#join, URI#merge, and URI#+ methods retain sensitive information, such as user:password, even after the host is replaced. A remote attacker can gain access to sensitive information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

rubygems-devel: before 2.7.6-133

rubygems: before 2.7.6-133

rubygem-xmlrpc: before 0.3.0-133

rubygem-test-unit: before 3.2.7-133

rubygem-rdoc: before 6.0.1.1-133

rubygem-rake: before 12.3.0-133

rubygem-power_assert: before 1.1.1-133

rubygem-net-telnet: before 0.1.1-133

rubygem-minitest: before 5.10.3-133

rubygem-did_you_mean: before 1.2.0-133

ruby-irb: before 2.5.8-133

ruby-help: before 2.5.8-133

rubygem-psych: before 3.0.2-133

rubygem-openssl: before 2.1.2-133

rubygem-json: before 2.1.0-133

rubygem-io-console: before 0.4.6-133

rubygem-bigdecimal: before 1.3.4-133

ruby-devel: before 2.5.8-133

ruby-debugsource: before 2.5.8-133

ruby-debuginfo: before 2.5.8-133

ruby: before 2.5.8-133

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1244


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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