tenderlove
(Aaron Patterson)
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, 2.2.6.1, 3.0.4.1
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 aren’t 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
Credits
Thank you ooooooo_q for reporting this!
3-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch (1.3 KB)
2-1-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch (1.3 KB)
2-0-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch (1.3 KB)
2-2-Fix-ReDoS-in-Rack-Utils.get_byte_ranges.patch (1.3 KB)