Bug 2125964 (CVE-2022-39176)

Summary: CVE-2022-39176 bluez: BlueZ allows physically proximate attackers to obtain sensitive information because profiles/audio/avrcp.c does not validate params_len
Product: [Other] Security Response Reporter: Sandipan Roy <saroy>
Component: vulnerabilityAssignee: Nobody <nobody>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bnocera, darcari, dwmw2, dzickus, gopalkrishna.tiwari, hwkernel-mgr, jburrell, pbrobinson, spacewar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in BlueZ. This flaw allows physically proximate attackers to obtain sensitive information because the profiles/audio/avrcp.c does not validate params_len.
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:
Embargoed:
Bug Depends On: 2125970, 2125974, 2125975, 2125976    
Bug Blocks: 2123781    

Description Sandipan Roy 2022-09-12 06:21:06 UTC
BlueZ before 5.59 allows physically proximate attackers to obtain sensitive information because profiles/audio/avrcp.c does not validate params_len.

https://ubuntu.com/security/notices/USN-5481-1
https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1977968

Comment 1 Sandipan Roy 2022-09-12 06:36:36 UTC
Created bluez tracking bugs for this issue:

Affects: fedora-36 [bug 2125970]

Comment 2 Sandipan Roy 2022-09-12 06:38:37 UTC
Created bluez tracking bugs for this issue:

Affects: fedora-35 [bug 2125976]

Comment 6 gopal krishna tiwari 2022-09-29 13:45:53 UTC
(In reply to Sandipan Roy from comment #5)
> https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/
> ?id=e2b0f0d8d63e1223bb714a9efb37e2257818268b
> https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/
> ?id=7a80d2096f1b7125085e21448112aa02f49f5e9a
> https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/profiles/audio/
> avdtp.c?id=0388794dc5fdb73a4ea88bcf148de0a12b4364d4
> https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1977968

Thanks, wondering do we have any reproducer for verification ?

Gopal ..

Comment 7 Sandipan Roy 2022-09-29 13:56:40 UTC
No Reproducer or test cases are present.