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OpenAdvisories
High ELSA-2025-21036 5 CVEs

Important: pcs security update (Oracle Linux 10)

Published Dec 2, 2025 · Updated Dec 2, 2025

Summary

[0.12.1-1.el10_1.1]
- Fixed CVE-2025-59830, CVE-2025-61770, CVE-2025-61771, CVE-2025-61772, CVE-2025-61919 by updating bundled rubygem rack
Resolves: RHEL-120945, RHEL-121035, RHEL-123630, RHEL-123642, RHEL-124938

Fixed packages 3

ReleasePackageFixed in
Oracle Linux · 10 cockpit-ha-cluster 0:0.12.1-1.el10_1.1
Oracle Linux · 10 pcs 0:0.12.1-1.el10_1.1
Oracle Linux · 10 pcs-snmp 0:0.12.1-1.el10_1.1

Vulnerabilities 5

  • High 7.5

    Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters

    Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter …

  • High 7.5

    Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)

    Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` buffers the entire multipart preamble (bytes before the first boundary) in memory without any size limit. A client can send a large preamble…

  • High 7.5

    Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)

    Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, ``Rack::Multipart::Parser` stores non-file form fields (parts without a `filename`) entirely in memory as Ruby `String` objects. A single large text field in a multip…

  • High 7.5

    Rack's multipart parser buffers unbounded per-part headers, enabling DoS (memory exhaustion)

    Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line (`CRLFCRLF`). The parser ke…

  • High 7.5

    Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

    Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-urlencoded`, calling `rack.input.read(nil)` without enforcing a …