Bug 1660385 (CVE-2018-20169)
| Summary: | CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS | ||
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| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abhgupta, bhu, dbaker, esammons, iboverma, jforbes, jokerman, jross, lgoncalv, matt, mcressma, mmilgram, rt-maint, slawomir, sthangav, trankin, vdronov, 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 discovered in the Linux kernel's USB subsystem in the __usb_get_extra_descriptor() function in the drivers/usb/core/usb.c which mishandles a size check during the reading of an extra descriptor data. By using a specially crafted USB device which sends a forged extra descriptor, an unprivileged user with physical access to the system can potentially cause a privilege escalation or trigger a system crash or lock up and thus to cause a denial of service (DoS).
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-11-06 00:51:32 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: | 1660386, 1689304, 1689305, 1689306, 1689307, 1689308, 1689309, 1828283, 1828284, 1836415, 1836416, 1836417, 1836418 | ||
| Bug Blocks: | 1660387 | ||
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Description
Andrej Nemec
2018-12-18 09:12:19 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1660386] This was fixed for Fedora with the 4.19.9 stable kernel updates 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 bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2018-20169 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:1016 https://access.redhat.com/errata/RHSA-2020:1016 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:1070 https://access.redhat.com/errata/RHSA-2020:1070 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 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-2020:2770 https://access.redhat.com/errata/RHSA-2020:2770 This issue has been addressed in the following products: Red Hat Enterprise MRG 2 Via RHSA-2020:2777 https://access.redhat.com/errata/RHSA-2020:2777 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2020:2851 https://access.redhat.com/errata/RHSA-2020:2851 |