Bug 1655925 (CVE-2018-19788)
| Summary: | CVE-2018-19788 polkit: Improper handling of user with uid > INT_MAX leading to authentication bypass | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abhgupta, alanm, bmcclain, cpatters, dbaker, dblechte, dfediuck, dmoppert, eedri, fedoraproject, fkrska, jangerrit.kootstra, jokerman, jrybar, kwalker, mgoldboi, michal.skrivanek, mmezynsk, mpoole, polkit-devel, sbonazzo, security-response-team, sherold, sthangav, swells, trankin, yturgema |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-08-06 19:20:18 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: | 1655926, 1656377, 1656378, 1757205 | ||
| Bug Blocks: | 1655928 | ||
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Description
Andrej Nemec
2018-12-04 09:27:26 UTC
Created polkit tracking bugs for this issue: Affects: fedora-all [bug 1655926] Patches: https://gitlab.freedesktop.org/zbyszek/polkit/commit/fbaab32cb4ed9ed5f1e3eea6cd317d443aa427dc https://gitlab.freedesktop.org/zbyszek/polkit/commit/7c8c3abdedbb991a69bc5f1ab0f96576958b55de Bump. Any update on getting this patched? Currently this bug allows non-privileged users to escalate to root. Statement: This issue affects the versions of polkit as shipped with Red Hat Enterprise Linux 6 and 7. Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Moderate, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue affects the versions of polkit as shipped with Red Hat Virtualization 4. System users beyond those created at installation time are typically not used in Red Hat Virtualization Hypervisor or Management Appliance hosts, nor is there any opportunity to accidentally or maliciously create a user with a dangerous uid/gid on these systems under normal operation. For Red Hat Virtualization, this vulnerability has been rated as having a security impact of Low. Future updates may address this issue. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2046 https://access.redhat.com/errata/RHSA-2019:2046 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-2018-19788 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2019:3232 https://access.redhat.com/errata/RHSA-2019:3232 Mitigation: Do not allow negative UIDs or UIDs greater than 2147483647. |