Out-of-bounds Write Affecting bluez package, versions <5.48-150000.5.41.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-SLES150-BLUEZ-3059508
  • published22 Oct 2022
  • disclosed21 Oct 2022

Introduced: 21 Oct 2022

CVE-2019-8922  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 bluez to version 5.48-150000.5.41.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez package and not the bluez package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on whether there is enough space in the destination buffer. The function simply appends all data passed to it. The values of all attributes that are requested are appended to the output buffer. There are no size checks whatsoever, resulting in a simple heap overflow if one can craft a request where the response is large enough to overflow the preallocated buffer. This issue exists in service_attr_req gets called by process_request (in sdpd-request.c), which also allocates the response buffer.

CVSS Scores

version 3.1