Bug 1757358 (CVE-2017-18552) - CVE-2017-18552 kernel: OOB read and write in net/rds/af_rds.c
Summary: CVE-2017-18552 kernel: OOB read and write in net/rds/af_rds.c
Alias: CVE-2017-18552
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1757359
Blocks: Embargoed1757360
TreeView+ depends on / blocked
Reported: 2019-10-01 10:27 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:20 UTC (History)
48 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2020-05-06 10:56:16 UTC

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Description Dhananjay Arunesh 2019-10-01 10:27:19 UTC
An issue was discovered in RDS protocol in the Linux kernel. There is an out of bounds write and read in the function rds_recv_track_latency which may allow an attacker with a local account to corrupt memory or escalate privileges.  

No Red Hat Enterprise Linux versions ship the affected code at this time.


Comment 1 Dhananjay Arunesh 2019-10-01 10:27:52 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1757359]

Comment 2 Justin M. Forbes 2019-10-01 13:43:21 UTC
This was fixed in the 4.11 kernel and has never impacted any release of Fedora which is currently supported.

Comment 5 Wade Mealing 2020-02-17 04:40:16 UTC

As the RDS module will be auto-loaded when required, its use can be disabled  by preventing the module from loading with the following instructions:

# echo "install rds /bin/true" >> /etc/modprobe.d/disable-rds.conf 
The system will need to be restarted if the RDS modules are loaded. In most circumstances, the RDS kernel modules will be unable to be unloaded while any network interfaces are active and the protocol 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.

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