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CVE-2019-8921

CVE-2019-8921

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 1.0% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • bluez Debian:12

    Affected ranges
    • ECOSYSTEM: < 5.54-1

    Update to 5.54-1

  • bluez Debian:13

    Affected ranges
    • ECOSYSTEM: < 5.54-1

    Update to 5.54-1

  • bluez Debian:14

    Affected ranges
    • ECOSYSTEM: < 5.54-1

    Update to 5.54-1

  • bluez Ubuntu:Pro:16.04:LTS

    Versions
    • 5.35-0ubuntu2
    • 5.36-0ubuntu1
    • 5.37-0ubuntu5
    • 5.37-0ubuntu5.1
    • 5.37-0ubuntu5.3
    • 5.37-0ubuntu5.3+esm1
    • 5.37-0ubuntu5.3+esm2
    • 5.37-0ubuntu5.3+esm3
    • 5.37-0ubuntu5.3+esm4
    Affected ranges
    • ECOSYSTEM: < 5.37-0ubuntu5.3+esm5

    Update to 5.37-0ubuntu5.3+esm5

  • bluez Ubuntu:18.04:LTS

    Versions
    • 5.46-0ubuntu3
    • 5.46-0ubuntu4
    • 5.48-0ubuntu3
    • 5.48-0ubuntu3.1
    • 5.48-0ubuntu3.2
    • 5.48-0ubuntu3.3
    • 5.48-0ubuntu3.4
    • 5.48-0ubuntu3.5
    Affected ranges
    • ECOSYSTEM: < 5.48-0ubuntu3.6

    Update to 5.48-0ubuntu3.6

Original sources

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