Bug 1735637 (CVE-2017-18379) - CVE-2017-18379 kernel: out of bound access in drivers/nvme/target/fc.c
Summary: CVE-2017-18379 kernel: out of bound access in drivers/nvme/target/fc.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-18379
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: 1735639
Blocks: 1735640
TreeView+ depends on / blocked
 
Reported: 2019-08-01 07:52 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:34 UTC (History)
46 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel’s implementation of NVME over a fiber connection. A local attacker could use this flaw to create a situation in which specially crafted requests could corrupt memory or possibly escalate privileges.
Clone Of:
Environment:
Last Closed: 2019-08-15 20:47:03 UTC

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Description Dhananjay Arunesh 2019-08-01 07:52:34 UTC 
A flaw was found in the linux kernels implementation of NVME over fiber connection.  A local attacker is able to create a situation in which speciacally crafted reqeusts could return kernel memory as inflight data or possibly corrupt kernel memory.

This may allow a local attacker to panic the system or escalate privileges.

Reference:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0c319d3a144d4b8f1ea2047fd614d2149b68f889
https://github.com/torvalds/linux/commit/0c319d3a144d4b8f1ea2047fd614d2149b68f889
Comment 1 Dhananjay Arunesh 2019-08-01 07:54:42 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1735639]
Comment 2 Justin M. Forbes 2019-08-01 12:39:27 UTC 
This was fixed for Fedora in 4.14 and never impacted any currently supported Fedora releases.
Comment 4 Wade Mealing 2019-08-05 07:49:20 UTC 
This flaw is rated as Important, it may allow a local attacker to issue an out-of-bounds write and gather information that is not intended to be accessed.  This information may weaken security measures in place making it easier for subsequent attacks to succeed.

Note: No current shipping versions of Red Hat Enterprise Linux are affected either by having the fix that solves that problem or not including the code that introduced the problem.
Comment 6 Product Security DevOps Team 2019-08-15 20:47:03 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-2017-18379
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