Bug 1846439 (CVE-2019-20811)
| Summary: | CVE-2019-20811 kernel: net-sysfs: *_queue_add_kobject refcount issue | ||
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| Product: | [Other] Security Response | Reporter: | Petr Matousek <pmatouse> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | acaringi, airlied, bhu, blc, bmasney, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, ptalbert, qzhao, rt-maint, rvrbovsk, steved, williams |
| 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 way the rx_queue_add_kobject and netdev_queue_add_kobject functions in the Linux kernel handled refcounting of certain objects. This flaw allows a local user who can trigger the error code path to use this vulnerability to disturb the integrity of the system.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-11-10 14:21:25 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: | 1846440, 1846454, 1846455, 1846456, 1846457 | ||
| Bug Blocks: | 1846302 | ||
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Description
Petr Matousek
2020-06-11 15:22:29 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1846440] 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. External References: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3e23f719f5c4a38ffb3d30c8d7632a4ed8ccd9e https://nvd.nist.gov/vuln/detail/CVE-2019-20811 Statement: This issue is rated as having Low impact because of the preconditions needed to trigger the error code path (privileges). This issue was fixed for Fedora with the 5.0.6 stable kernel updates. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:5023 https://access.redhat.com/errata/RHSA-2020:5023 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:5026 https://access.redhat.com/errata/RHSA-2020:5026 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-2019-20811 |