Bug 1758671 (CVE-2017-18595)
| Summary: | CVE-2017-18595 kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c | ||
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| 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: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | acaringi, airlied, asavkov, bhu, blc, brdeoliv, bskeggs, dhoward, dominik.mierzejewski, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, jmarchan, joe.lawrence, john.j5live, jonathan, josef, jpoimboe, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rhandlin, rkeshri, rt-maint, rvrbovsk, skozina, steved, williams, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A flaw was found in the allocate_trace_buffer in kernel/trace/trace.c in the debug subsystem, when failure to allocate a dynamic percpu area, a resource cleanup is called. The pointer (buf->buffer) still holds the address and is not set to NULL, which can cause a use-after-free problem, leading to a dangling pointer issue.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-05-12 16:32:00 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: | 1759138, 1802950, 1802951, 1802952, 1802953, 1802954, 1802955, 1802957, 1802958, 1802959, 1802960, 1802961, 1802962, 1802963, 1802964, 1802965, 1802966, 1803010, 1803011, 1803012, 1803018, 1803019 | ||
| Bug Blocks: | 1758672 | ||
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Description
Guilherme de Almeida Suckevicz
2019-10-04 19:50:19 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1759138] This was fixed for fedora in the 4.14.11 stable update, and never impacted any of the still currently supported versions of Fedora. Mitigation: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:2104 https://access.redhat.com/errata/RHSA-2020:2104 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-2017-18595 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:2082 https://access.redhat.com/errata/RHSA-2020:2082 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:2085 https://access.redhat.com/errata/RHSA-2020:2085 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-2020:2214 https://access.redhat.com/errata/RHSA-2020:2214 This issue has been addressed in the following products: Red Hat Enterprise MRG 2 Via RHSA-2020:2242 https://access.redhat.com/errata/RHSA-2020:2242 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.2 Advanced Update Support Via RHSA-2020:2285 https://access.redhat.com/errata/RHSA-2020:2285 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.3 Advanced Update Support Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions Red Hat Enterprise Linux 7.3 Telco Extended Update Support Via RHSA-2020:2277 https://access.redhat.com/errata/RHSA-2020:2277 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2020:2289 https://access.redhat.com/errata/RHSA-2020:2289 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.7 Extended Update Support Via RHSA-2020:2522 https://access.redhat.com/errata/RHSA-2020:2522 |