Bug 1481136 (CVE-2017-10661)
| Summary: | CVE-2017-10661 kernel: Handling of might_cancel queueing is not properly pretected against race | ||
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| 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: | aquini, bhu, blc, dhoward, fhrbata, gansalmon, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, mlangsdo, nmurray, pholasek, plougher, rt-maint, rvrbovsk, slawomir, vdronov, williams, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
A race condition was found in the Linux kernel before version 4.11-rc1 in 'fs/timerfd.c' file which allows a local user to cause a kernel list corruption or use-after-free via simultaneous operations with a file descriptor which leverage improper 'might_cancel' queuing. An unprivileged local user could use this flaw to cause a denial of service of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-08 03:20:44 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: | 1485404, 1485405, 1485406, 1485407, 1485408, 1485409, 1485410, 1740278, 1740279 | ||
| Bug Blocks: | 1481154 | ||
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Description
Adam Mariš
2017-08-14 08:16:55 UTC
Statement: This issue does not affect Red Hat Enterprise Linux 5 as the code with the flaw is not present in the products listed. This issue affects Red Hat Enterprise Linux 6 and 7. Future updates for the respective releases may address this issue. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux MRG-2. This flaw is not currently planned to be addressed in future updates due to MRG-2 being an EUS release. For additional information, refer to the Extended Update Support (EUS) Guide: https://access.redhat.com/articles/rhel-eus. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3083 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2018:3096 This issue has been addressed in the following products: Red Hat Enterprise MRG 2 Via RHSA-2019:4057 https://access.redhat.com/errata/RHSA-2019:4057 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Advanced Update Support Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions Red Hat Enterprise Linux 7.4 Telco Extended Update Support Via RHSA-2019:4058 https://access.redhat.com/errata/RHSA-2019:4058 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.5 Extended Update Support Via RHSA-2020:0036 https://access.redhat.com/errata/RHSA-2020:0036 |