Bug 1698757 (CVE-2019-3900)
| Summary: | CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| 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, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jross, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, matt, mchehab, mcressma, mjg59, mlangsdo, mvanderw, nmurray, plougher, rt-maint, rvrbovsk, security-response-team, steved, williams, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
An infinite loop issue was found in the vhost_net kernel module while handling incoming packets in handle_rx(). The infinite loop could occur if one end sends packets faster than the other end can process them. A guest user, maybe a remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-07-30 19:18:20 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: | 1702940, 1702941, 1702942, 1702943, 1702944, 1702945, 1702946, 1702947, 1702948, 1702949, 1702950, 1738494, 1759703, 1759704, 1759705, 1759706 | ||
| Bug Blocks: | 1698754 | ||
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Description
Andrej Nemec
2019-04-11 07:58:29 UTC
Acknowledgments: Name: Jason Wang (Red Hat Inc.) Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1702940] kernel-5.0.11-100.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report. Statement: This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2. This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and 7. Future kernel updates for Red Hat Enterprise Linux 6 and 7 may address this issue. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:1973 https://access.redhat.com/errata/RHSA-2019:1973 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-2019-3900 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2019:3220 https://access.redhat.com/errata/RHSA-2019:3220 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2019:3309 https://access.redhat.com/errata/RHSA-2019:3309 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2019:3517 https://access.redhat.com/errata/RHSA-2019:3517 This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2019:3836 https://access.redhat.com/errata/RHSA-2019:3836 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.5 Extended Update Support Via RHSA-2019:3967 https://access.redhat.com/errata/RHSA-2019:3967 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 8.0 Update Services for SAP Solutions Via RHSA-2020:0204 https://access.redhat.com/errata/RHSA-2020:0204 |