Bug 1777449 (CVE-2019-18809) - CVE-2019-18809 kernel: memory leak in af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c
Summary: CVE-2019-18809 kernel: memory leak in af9005_identify_state() function in dr...
Keywords:
Status: NEW
Alias: CVE-2019-18809
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1825141 1825142 1777451 1825143
Blocks: 1777490
TreeView+ depends on / blocked
 
Reported: 2019-11-27 15:32 UTC by Dhananjay Arunesh
Modified: 2020-09-15 20:41 UTC (History)
44 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in the Afatech 9005 DVB-T receiver driver in the Linux kernel. An attacker, with physical access to the system, could cause the system to crash following a resource cleanup. The highest threat from this vulnerability is to system availability.
Clone Of:
Environment:
Last Closed:


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Description Dhananjay Arunesh 2019-11-27 15:32:47 UTC
A memory leak in the af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel allows attackers to cause a denial of service (memory consumption)

Reference:
https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928

Comment 1 Dhananjay Arunesh 2019-11-27 15:34:07 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1777451]

Comment 3 Petr Matousek 2020-04-17 07:32:46 UTC
Mitigation:

In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module dvb-usb-af9005. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278


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