Bug 1789407 (CVE-2019-15845)
| Summary: | CVE-2019-15845 ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | amasferr, chazlett, hhorak, jorton, mo, mtasaka, pvalena, ruby-maint, ruby-packagers-sig, s, strzibny, vanmeeuwen+fedora, vondruch |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | ruby 2.4.8, ruby 2.5.7, ruby 2.6.5, ruby 2.7.0 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was discovered in Ruby in the way certain functions handled strings containing NULL bytes. Specifically, the built-in methods File.fnmatch and its alias File.fnmatch? did not properly handle path patterns containing the NULL byte. A remote attacker could exploit this flaw to make a Ruby script access unexpected files and to bypass intended file system access restrictions.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-05-26 11:32:05 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: | 1789408, 1796784, 1796785, 1796786, 1796787, 1796788, 1796789, 1954949, 1955053, 1957122, 2055232, 2055241 | ||
| Bug Blocks: | 1789409 | ||
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Description
Guilherme de Almeida Suckevicz
2020-01-09 13:58:32 UTC
Created ruby tracking bugs for this issue: Affects: fedora-all [bug 1789408] External References: https://www.ruby-lang.org/en/news/2019/10/01/nul-injection-file-fnmatch-cve-2019-15845/ Mitigation: It is possible to test for presence of the NULL byte manually prior to call the affected methods with an untrusted string. This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS Via RHSA-2021:2104 https://access.redhat.com/errata/RHSA-2021:2104 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2019-15845 This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS Via RHSA-2021:2230 https://access.redhat.com/errata/RHSA-2021:2230 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:2587 https://access.redhat.com/errata/RHSA-2021:2587 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:2588 https://access.redhat.com/errata/RHSA-2021:2588 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions Via RHSA-2022:0581 https://access.redhat.com/errata/RHSA-2022:0581 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Extended Update Support Via RHSA-2022:0582 https://access.redhat.com/errata/RHSA-2022:0582 |