Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bluez | Bluez | < 5.55 |
| Debian | Debian Linux | 9.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue TrackingThird Party Advisory
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatchThird Party Advisory
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202011-01Third Party Advisory
- https://www.debian.org/security/2021/dsa-4951Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue TrackingThird Party Advisory
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatchThird Party Advisory
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202011-01Third Party Advisory
FAQ
What is CVE-2020-27153?
CVE-2020-27153 is a vulnerability with a CVSS score of 8.6 (HIGH). 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...
How severe is CVE-2020-27153?
CVE-2020-27153 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27153?
Check the references section above for vendor advisories and patch information. Affected products include: Bluez Bluez, Debian Debian Linux, Opensuse Leap.