Double Free Affecting bluez package, versions <5.55-1
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
4.97% (93rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-BLUEZ-1018717
- published 15 Oct 2020
- disclosed 15 Oct 2020
Introduced: 15 Oct 2020
CVE-2020-27153 Open this link in a new tabHow to fix?
Upgrade Debian:11
bluez
to version 5.55-1 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:11
relevant fixed versions and status.
In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
References
- https://security-tracker.debian.org/tracker/CVE-2020-27153
- https://security.gentoo.org/glsa/202011-01
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07
- https://lists.debian.org/debian-lts-announce/2020/10/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.html
- https://www.debian.org/security/2021/dsa-4951