Bug 1783534 (CVE-2019-19533)
| Summary: | CVE-2019-19533 kernel: information leak bug caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c | ||
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| Product: | [Other] Security Response | Reporter: | msiddiqu |
| 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, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, qzhao, rt-maint, rvrbovsk, steved, williams, wmealing |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
An information leak flaw was found in the Linux kernel's USB digital video device driver. An attacker with a malicious USB device presenting itself as a 'Technotrend/Hauppauge USB DEC' device is able to issue commands to this specific device and leak kernel internal memory information. The highest threat from this vulnerability is a breach of data confidentiality.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-11-04 02:23:44 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: | 1783536, 1788002, 1788003, 1788004, 1788005, 1788006 | ||
| Bug Blocks: | 1783535 | ||
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Description
msiddiqu
2019-12-13 21:26:22 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1783536] This was fixed for Fedora with the 5.3.4 stable kernel update. Mitigation: As the ttusb_dec module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions: # echo "install ttusb_dec /bin/true" >> /etc/modprobe.d/disable-cifs.conf The system will need to be restarted if the ttusb_dec module is already loaded. In most circumstances, the CIFS kernel module will be unable to be unloaded while the device is in use. If the system requires this module to work correctly, this mitigation may not be suitable. If you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4431 https://access.redhat.com/errata/RHSA-2020:4431 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4609 https://access.redhat.com/errata/RHSA-2020:4609 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-2019-19533 |