Bug 1301946 (CVE-2016-0751)
| Summary: | CVE-2016-0751 rubygem-actionpack: possible object leak and denial of service attack in Action Pack | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | apatters, bgollahe, bkearney, cbillett, ccoleman, cpelland, dajohnso, dclarizi, dmcphers, gblomqui, gmccullo, gtanzill, jfrey, jhardy, jialiu, joelsmith, jokerman, jorton, jprause, jrusnack, kanderso, katello-bugs, kseifried, lmeyer, mastahnke, mmaslano, mmccomas, mmorsi, mtasaka, obarenbo, osoukup, pvalena, roliveri, slong, sseago, s, strzibny, tomckay, vanmeeuwen+fedora, vondruch, xlecauch |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | rubygem-actionpack 5.0.0.beta1.1, rubygem-actionpack 4.2.5.1, rubygem-actionpack 4.1.14.1, rubygem-actionpack 3.2.22.1 | Doc Type: | Bug Fix |
| Doc Text: |
A flaw was found in the way the Action Pack component performed MIME type lookups. Since queries were cached in a global cache of MIME types, an attacker could use this flaw to grow the cache indefinitely, potentially resulting in a denial of service.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-03-15 21:22:43 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1301947, 1301948, 1302002, 1306275, 1306276, 1306277, 1306278, 1306279, 1306281 | ||
| Bug Blocks: | 1302006 | ||
|
Description
Adam Mariš
2016-01-26 12:21:13 UTC
Created rubygem-rails tracking bugs for this issue: Affects: fedora-all [bug 1301948] Upstream commit: 3.2 https://github.com/rails/rails/commit/127967b735813cd4f263df7a50426d74e7e9cc17 4.1 https://github.com/rails/rails/commit/221937c8ba1d291430ceddebbd4bdef7d3cb47d6 4.2 https://github.com/rails/rails/commit/37047b779a177b911c7161052cfc34a30e1db0af This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6 Via RHSA-2016:0296 https://rhn.redhat.com/errata/RHSA-2016-0296.html rubygem-actionpack-4.2.0-3.fc22, rubygem-activemodel-4.2.0-2.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. rubygem-actionpack-4.2.3-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS Via RHSA-2016:0455 https://rhn.redhat.com/errata/RHSA-2016-0455.html This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS Via RHSA-2016:0454 https://rhn.redhat.com/errata/RHSA-2016-0454.html Mitigation:
Use following code to monkey-patch mime types cache and disable caching.
```
require 'action_dispatch/http/mime_type'
Mime.const_set :LOOKUP, Hash.new { |h,k|
Mime::Type.new(k) unless k.blank?
}
```
Alternatively perform filtering of mime types in the Accept header to allow only known types.
|