Bug 1783478 (CVE-2019-19525) - CVE-2019-19525 kernel: malicious USB device leads to use-after-free in the drivers/net/ieee802154/atusb.c driver
Summary: CVE-2019-19525 kernel: malicious USB device leads to use-after-free in the dr...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-19525
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1783479
Blocks: 1783480
TreeView+ depends on / blocked
 
Reported: 2019-12-13 19:57 UTC by msiddiqu
Modified: 2021-02-16 20:52 UTC (History)
44 users (show)

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.
Clone Of:
Environment:
Last Closed: 2020-02-17 14:10:01 UTC
Embargoed:

Attachments (Terms of Use)

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

References: 

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
http://seclists.org/oss-sec/2019/q4/115
http://www.openwall.com/lists/oss-security/2019/12/03/4

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd25e6fc035f4b04b75bca6d7e8daa069603a76
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:

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):

https://access.redhat.com/security/cve/cve-2019-19525
Comment 6 Eric Christensen 2020-03-05 18:35:14 UTC 
External References:

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
http://seclists.org/oss-sec/2019/q4/115
http://www.openwall.com/lists/oss-security/2019/12/03/4
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd25e6fc035f4b04b75bca6d7e8daa069603a76
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