CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
52.1%
There is a possible denial of service vulnerability in the Range header parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-44570.
Versions Affected: >= 1.5.0 Not affected: None. Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.0.1
Impact
Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.
Releases
The fixed releases are available at the normal locations.
Workarounds
There are no feasible workarounds for this issue.
Patches
To aid users who arenβt able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.
2-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.0 series
2-1-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.1 series
2-2-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 2.2 series
3-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch - Patch for 3.0 series
discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125
github.com/advisories/GHSA-65f5-mfpf-vfhj
github.com/rack/rack/releases/tag/v3.0.4.1
github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2022-44570.yml
nvd.nist.gov/vuln/detail/CVE-2022-44570
security.netapp.com/advisory/ntap-20231208-0010/
www.debian.org/security/2023/dsa-5530