SB2025100725 - Multiple DoS vulnerabilities in in Rack

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Resource exhaustion (CVE-ID: CVE-2025-61770)

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

The vulnerability exists due to application does not properly control consumption of internal resources in Rack::Multipart::Parser. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

2) Resource exhaustion (CVE-ID: CVE-2025-61771)

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

The vulnerability exists due to application does not properly control consumption of internal resources in Rack::Multipart::Parser when handling file parts. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

3) Resource exhaustion (CVE-ID: CVE-2025-61772)

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

The vulnerability exists due to application does not properly control consumption of internal resources in Rack::Multipart::Parser when handling multipart headers. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://github.com/rack/rack/security/advisories/GHSA-p543-xpfm-54cp
• https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw
• https://github.com/rack/rack/security/advisories/GHSA-wpv5-97wm-hp9c