Important: Red Hat Security Advisory: pcs security update

An update for pcs is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

rack: Rack memory exhaustion denial of service

A denial of service flaw has been found in the rubygems rack package. Rack::Multipart::Parser can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line CRLFCRLF. The parser keeps appending incoming bytes to memory without a size cap, allowing...

Important: pcs security update

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon-separated parameters CVE-2025-59830 rack: Rack's unbounded multipart preamble...

RHEL 9 : pcs (RHSA-2025:20962)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:20962 advisory. The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack...

ALSA-2025:21036 Important: pcs security update

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon-separated parameters CVE-2025-59830 rack: Rack's unbounded multipart preamble...

RHEL 10 : pcs (RHSA-2025:21036)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:21036 advisory. The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack...

ALSA-2025:20962 Important: pcs security update

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon-separated parameters CVE-2025-59830 rack: Rack's unbounded multipart preamble...

Denial-of-Service (DoS)

rack is vulnerable to Denial-Of-Service. The vulnerability is due to Rack::RequestPOST reading the entire application/x-www-form-urlencoded body into memory due to calling rack.input.readnil without enforcing a length limit, and attackers can send very large form bodies to exhaust process memory...

Information Disclosure

rack is vulnerable to Information Disclosure. The vulnerability is due to trusting unvalidated x-sendfile-type and x-accel-mapping headers, allowing attackers to craft headers that trick the proxy into making internal requests and bypassing access controls...

Parameter-parsing Bypass

Rack is vulnerable to a parameter-parsing Bypass. The vulnerability is due to Rack::QueryParser enforcing its paramslimit only for parameters separated by & while still splitting on both & and ;, which allows an attacker to bypass the parameter count limit by using ; separators to submit excessiv...

rubygem-rack: Unbounded read in `Rack::Request` form parsing can lead to memory exhaustion

A memory-exhaustion vulnerability exists in Rack when parsing application/x-www-form-urlencoded request bodies. Rack::RequestPOST reads the entire request body into memory without enforcing a maximum length or cap. Attackers can exploit this by sending large form submissions, potentially causing...

Important: Red Hat Security Advisory: pcs security update

An update for pcs is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

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

A flaw was found in Rack where Rack::Multipart::Parser stores non-file form fields entirely in memory without size limits. An attacker can send a multipart/form-data request with an extremely large text field, causing the server to allocate large amounts of memory which leads to a denial of servi...

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

An unsafe default behavior in Rack::QueryParser allows bypass of the paramslimit parameter count restriction when query string parameters are delimited by semicolons ; rather than ampersands &. The parser counts only & when enforcing the limit, while still splitting on both & and ;. As a result, ...

rack: Rack memory exhaustion denial of service

A denial of service flaw has been found in the rubygems rack package. Rack::Multipart::Parser can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line CRLFCRLF. The parser keeps appending incoming bytes to memory without a size cap, allowing...

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

A flaw was found in Rack where the Rack::Multipart::Parser buffers the multipart preamble memory without size limits. A remote attacker can send a crafted multipart/form-data request with a very large preamble before its first boundary, causing excessive memory consumption and denial of service...

RHEL 8 / 9 : Satellite 6.16.5.5 Async Update (Important) (RHSA-2025:19855)

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:19855 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessi...

RHEL 9 : Satellite 6.17.6 Async Update (Important) (RHSA-2025:19832)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:19832 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity t...

RHEL 8 : Satellite 6.15.5.6 Async Update (Important) (RHSA-2025:19856)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:19856 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity t...

RHEL 8 : pcs (RHSA-2025:19948)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:19948 advisory. The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fixes: rubygem-rack: Rack...