CVE-2020-27153 — Vulnetix

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CVE-2020-27153 PUBLISHED

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.

EPSS 1.90% · 83.1th percentile

Risk Scores

EPSS Score

1.90%

83.1th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	bluez	5.46-0ubuntu4, 5.48-0ubuntu3, 5.48-0ubuntu3.1
Ubuntu:Pro:16.04:LTS	bluez	0, 5.35-0ubuntu2, 5.36-0ubuntu1
Ubuntu:20.04:LTS	bluez	0, 5.50-0ubuntu4, 5.51-0ubuntu1

Timeline

Oct 15, 2020 CVE Published
Apr 14, 2021 EPSS Score
Aug 8, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 4, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Aug 31, 2022 EPSS Score
Nov 1, 2022 EPSS Score
Mar 5, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2020-27153 third-party-advisory
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07 third-party-advisory
https://ubuntu.com/security/notices/USN-4989-1 vendor-advisory
https://ubuntu.com/security/notices/USN-4989-2 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2020-27153 third-party-advisory

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