Debian Security Advisory DSA-4951-1 bluez


Debian security advisory DSA-4951-1 bluez.

Several vulnerabilities were discovered in Bluez, the Linux Bluetooth protocol stack.

Debian security advisory DSA-4951-1 bluez.

Package: bluez

  • CVE-2020-26558
  • CVE-2020-27153
  • CVE-2021-0129

Debian Bug: 989614

Several vulnerabilities were discovered in Bluez, the Linux Bluetooth protocol stack.

CVE-2020-26558 / CVE-2021-0129:
It was discovered that Bluez does not properly check permissions during pairing operation, which could allow an attacker to impersonate the initiating device.

Jay LV discovered a double free flaw in the disconnect_cb() routine in the gattool. A remote attacker can take advantage of this flaw during service discovery for denial of service, or potentially, execution of arbitrary code.

For the stable distribution Debian 10 "Buster", these problems have been fixed in version 5.50-1.2~deb10u2.

We recommend that you upgrade your bluez packages.

For the detailed security status of bluez please refer to its security tracker page.

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