Bug 2034699 (CVE-2021-0924)

Summary: CVE-2021-0924 kernel: out-of-bounds read due to a missing bounds check in xhci_vendor_get_ops() of xhci.c
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: acaringi, adscvr, airlied, alciregi, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, vkumar, walters, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds (OOB) memory access flaw was found in xhci_vendor_get_ops in drivers/usb/host/xhci.c in the Linux kernel's xhci platform drivers. In this flaw, a local attacker with user privileges may cause an escalation of privilege due to a missing sanity check.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-12-23 12:40:50 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: 2034700    
Bug Blocks: 2034701    

Description Guilherme de Almeida Suckevicz 2021-12-21 18:11:56 UTC
In xhci_vendor_get_ops of xhci.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-194461020References: Upstream kernel

References:
https://source.android.com/security/bulletin/2021-11-01
https://android.googlesource.com/kernel/common/+/df1995aede8e5b13a5ba4d36b48ed88d5bb84497

Comment 1 Guilherme de Almeida Suckevicz 2021-12-21 18:12:37 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2034700]

Comment 5 Justin M. Forbes 2021-12-22 14:12:55 UTC
This CVE is in code that is not upstream, and not shipped with Fedora.

Comment 6 Product Security DevOps Team 2021-12-23 12:40:47 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-2021-0924