Bug 2034514 (CVE-2021-4154)
| Summary: | CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | msiddiqu |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, alciregi, asavkov, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, ctoe, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jpoimboe, jshortt, jstancek, jthierry, jwboyer, kcarcia, kernel-maint, kernel-mgr, kpatch-maint, lgoncalv, linville, llong, lzampier, masami256, mchehab, michal.skrivanek, mperina, nmurray, nobody, ptalbert, qzhao, rhandlin, rkeshri, rvrbovsk, sbonazzo, scweaver, steved, vkumar, walters, williams, ycote |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.14 rc2 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-05-11 13:16:27 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: | 2034605, 2034606, 2034607, 2034608, 2034609, 2034610, 2034611, 2034612, 2034613, 2034614, 2034615, 2034616, 2034617, 2034618, 2034812, 2047630 | ||
| Bug Blocks: | 2034131, 2034777 | ||
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Description
msiddiqu
2021-12-21 07:54:42 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Extended Update Support Via RHSA-2022:0187 https://access.redhat.com/errata/RHSA-2022:0187 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Extended Update Support Via RHSA-2022:0186 https://access.redhat.com/errata/RHSA-2022:0186 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Extended Update Support Via RHSA-2022:0231 https://access.redhat.com/errata/RHSA-2022:0231 Created oVirt tracking bug for this issue: Affects: oVirt Node 4.4 [ bug 2047630 ] This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:0819 https://access.redhat.com/errata/RHSA-2022:0819 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:0825 https://access.redhat.com/errata/RHSA-2022:0825 This issue has been addressed in the following products: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Via RHSA-2022:0841 https://access.redhat.com/errata/RHSA-2022:0841 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:0849 https://access.redhat.com/errata/RHSA-2022:0849 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-2021-4154 |