| Name | CVE-2022-44572 |
| Description | A denial of service vulnerability in the multipart parsing component of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1 and 3.0.0.1 could allow an attacker tocraft input that can cause RFC2183 multipart boundary parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3298-1, DSA-5530-1 |
| Debian Bugs | 1029832 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ruby-rack (PTS) | jessie, jessie (lts) | 1.5.2-3+deb8u4 | vulnerable |
| stretch (security) | 1.6.4-4+deb9u2 | fixed | |
| stretch (lts), stretch | 1.6.4-4+deb9u6 | fixed | |
| buster | 2.0.6-3 | vulnerable | |
| buster (security) | 2.0.6-3+deb10u4 | fixed | |
| bullseye (security), bullseye | 2.1.4-3+deb11u1 | fixed | |
| bookworm | 2.2.6.4-1 | fixed | |
| trixie | 2.2.7-1 | fixed | |
| sid | 2.2.7-1.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| ruby-rack | source | jessie | (unfixed) | end-of-life | ||
| ruby-rack | source | stretch | (not affected) | |||
| ruby-rack | source | buster | 2.0.6-3+deb10u2 | DLA-3298-1 | ||
| ruby-rack | source | bullseye | 2.1.4-3+deb11u1 | DSA-5530-1 | ||
| ruby-rack | source | (unstable) | 2.2.4-3 | 1029832 |
https://github.com/rack/rack/commit/dc50f8e495f67eb933b1fc33ebee550908d945e6 (v2.0.9.2)
https://github.com/rack/rack/commit/8291f502b0e1dcf514cc25c34e4bf0beec7a92ae (v2.1.4.2)
https://github.com/rack/rack/commit/19e49f0f185d7e42ed5b402baec6c897a8c48029 (v2.2.6.1)
[stretch] - ruby-rack <not-affected> (Vulnerable code introduced later)