Bug 1707358 (CVE-2019-11683)

Summary: CVE-2019-11683 kernel: udp_gro_receive_segment in net/ipv4/udp_offload.c allows denial of service or other unspecified impact via UDP packets with 0 payload
Product: [Other] Security Response Reporter: msiddiqu
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, airlied, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jross, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, steved, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 5.0.13 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:55:08 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1707359    
Bug Blocks:    

Description msiddiqu 2019-05-07 11:24:31 UTC
udp_gro_receive_segment in net/ipv4/udp_offload.c in the Linux kernel 5.x through 5.0.11 allows remote attackers to cause a denial of service (slab-out-of-bounds memory corruption) or possibly have unspecified other impact via UDP packets with a 0 payload, because of mishandling of padded packets, aka the "GRO packet of death" issue.

Introduced in:

http://git.kernel.org/linus/e20cf8d3f1f763ad28a9cb3b41305b8a8a42653e

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=4dd2b82d5adfbe0b1587ccad7a8f76d826120f37

References:

https://www.spinics.net/lists/netdev/msg568315.html
http://www.openwall.com/lists/oss-security/2019/05/02/1
https://www.openwall.com/lists/oss-security/2019/05/05/4
https://seclists.org/oss-sec/2019/q2/86
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.13

Comment 1 msiddiqu 2019-05-07 11:24:52 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1707359]

Comment 2 msiddiqu 2019-05-08 09:55:06 UTC
Statement:

This flaw did not affect the versions of kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and 8.