Bug 2020523 (CVE-2021-43400) - CVE-2021-43400 bluez: use-after-free in gatt-database.c
Summary: CVE-2021-43400 bluez: use-after-free in gatt-database.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-43400
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2020524
Blocks: 2020525
TreeView+ depends on / blocked
 
Reported: 2021-11-05 08:08 UTC by Marian Rehak
Modified: 2023-03-14 12:11 UTC (History)
9 users (show)

Fixed In Version: bluez 5.62
Clone Of:
Environment:
Last Closed: 2022-01-12 14:34:47 UTC
Embargoed:

Attachments (Terms of Use)

Description Marian Rehak 2021-11-05 08:08:38 UTC 
A use-after-free in gatt-database.c can occur when a client disconnects during D-Bus processing of a WriteValue call.

External Reference:

https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=838c0dc7641e1c991c0f3027bf94bee4606012f8
Comment 1 Marian Rehak 2021-11-05 08:08:55 UTC 
Created bluez tracking bugs for this issue:

Affects: fedora-all [bug 2020524]
Comment 2 juneau 2021-11-05 11:51:31 UTC 
Marking services "notaffected" as this issue is specific to Bluetooth.
Comment 3 Peter Robinson 2021-11-30 11:33:23 UTC 
Fixed in Fedora over a month ago with bluez-5.62-1.fc34  bluez-5.62-1.fc35
Comment 4 devthomp 2022-01-12 13:20:55 UTC 
Bug is relevant to 5.61 none of our products (besides fedora) ship this version.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43400
Comment 5 Product Security DevOps Team 2022-01-12 14:34:45 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-2021-43400
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