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Debian Security Advisory 4951-1

Debian Security Advisory 4951-1
Posted Aug 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4951-1 - Several vulnerabilities were discovered in Bluez, the Linux Bluetooth protocol stack.

tags | advisory, vulnerability, protocol
systems | linux, debian
advisories | CVE-2020-26558, CVE-2020-27153, CVE-2021-0129
SHA-256 | 431d311d6156400aa4dd4fd7ef9b5e86f90421e808c0e7e5aa7f6a4c7ef192fe

Debian Security Advisory 4951-1

Change Mirror Download
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-4951-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
August 07, 2021 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : bluez
CVE ID : 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.

CVE-2020-27153

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 (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 at:
https://security-tracker.debian.org/tracker/bluez

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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