Buffer Access with Incorrect Length Value The advisory has been revoked - it doesn't affect any version of package bluez-libs  (opens in a new tab)


Threat Intelligence

EPSS
1.01% (62nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-BLUEZLIBS-1947817
  • published30 Nov 2021
  • disclosed25 Feb 2019

Introduced: 25 Feb 2019

CVE-2019-8921  (opens in a new tab)
CWE-805  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez-libs package and not the bluez-libs package as distributed by Centos.

An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same.