VulnerabilityModified
CVE-2020-27153
A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
HIGH 8.6EPSS 4.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- EPSS
- 4.32% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- bluez/bluez · debian/debian linux · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking, Third Party Advisory
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch, Third Party Advisory
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List, Third 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 List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking, Third Party Advisory
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch, Third Party Advisory
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202011-01Third Party Advisory
- https://www.debian.org/security/2021/dsa-4951Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.