Bug 1758242 (CVE-2019-17053)

Summary: CVE-2019-17053 kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol.
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, aclaudi, airlied, bdettelb, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jschorr, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, steved, williams, wmealing
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A vulnerability was discovered in the Linux kernel's AF_IEEE802154 networking module where permissions checks are not enforced. This can allow an unprivileged user to create raw sockets for this protocol leading to the potential for data leaks or system unavailability.
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1779494, 1779495, 1779496, 1804800, 1758243, 1779497    
Bug Blocks: 1758244    

Description Dhananjay Arunesh 2019-10-03 16:35:19 UTC
A vulnerability was discovered in ieee802154_create in net/ieee802154/socket.c in the AF_IEEE802154 protocol module in the Linux kernel which did not enforcepermission checks. This could allow a local unprivileged user to create a raw socket.


Reference:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e69dbd4619e7674c1679cba49afd9dd9ac347eef

Comment 1 Dhananjay Arunesh 2019-10-03 16:36:05 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1758243]

Comment 2 Fedora Update System 2019-10-25 18:07:02 UTC
kernel-5.3.6-100.fc29, kernel-headers-5.3.6-100.fc29, kernel-tools-5.3.6-100.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.

Comment 8 Eric Christensen 2019-12-05 18:25:46 UTC
Statement:

This flaw is rated as moderate; there are no known exploits using this mechanism as an attack surface against the system affected by this bug.