Use After Free Affecting bluez package, versions <5.50-1.2~deb10u3


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.26% (66th percentile)

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  • Snyk ID SNYK-DEBIAN10-BLUEZ-1911955
  • published 5 Nov 2021
  • disclosed 4 Nov 2021

How to fix?

Upgrade Debian:10 bluez to version 5.50-1.2~deb10u3 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 Debian. See How to fix? for Debian:10 relevant fixed versions and status.

An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.

CVSS Scores

version 3.1
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NVD

9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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SUSE

4.8 medium
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Red Hat

9.1 critical