Bug 1783478 (CVE-2019-19525)

Summary: CVE-2019-19525 kernel: malicious USB device leads to use-after-free in the drivers/net/ieee802154/atusb.c driver
Product: [Other] Security Response Reporter: msiddiqu
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, qzhao, rt-maint, rvrbovsk, steved, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in the ieee802154 network subsystem in the Linux kernel. A malicious USB device could cause the exploit when a disconnect callback is accessing the hardware-descriptor private data after having it freed by the atusb_disconnect driver.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-02-17 14:10:01 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1783479    
Bug Blocks: 1783480    

Description msiddiqu 2019-12-13 19:57:47 UTC
In the Linux kernel, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver



Upstream patch:


Comment 1 msiddiqu 2019-12-13 19:58:37 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1783479]

Comment 2 Justin M. Forbes 2019-12-16 16:54:53 UTC
This is fixed for Fedora with the 5.3.6 stable kernel update.

Comment 4 Rohit Keshri 2020-02-17 08:53:25 UTC

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.

Comment 5 Product Security DevOps Team 2020-02-17 14:10:01 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):