Bug 1984024 (CVE-2021-3655)

Summary: CVE-2021-3655 kernel: missing size validations on inbound SCTP packets
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, adscvr, airlied, alciregi, bdettelb, bhu, blc, bskeggs, chwhite, dhoward, dvlasenk, hdegoede, hkrzesin, jarod, jarodwilson, jeremy, jforbes, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rvrbovsk, steved, swood, tomckay, walters, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel v5.14-rc1 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1985145, 1985143, 1985144, 1985843, 1986966    
Bug Blocks: 1977906, 1984026    

Description Guilherme de Almeida Suckevicz 2021-07-20 13:03:51 UTC
A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=f9beb95e6a2669fa35e34a6ff52808b181efa20f

Comment 1 Wade Mealing 2021-07-23 01:55:21 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1985143]

Comment 8 Justin M. Forbes 2021-07-26 16:54:42 UTC
This was fixed for Fedora with the 5.13.4 rebases.