CVE-2019-8921
CVSS V2 Low 3.3
CVSS V3 Medium 6.5
Description
An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same.
Overview
- CVE ID
- CVE-2019-8921
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-11-29T08:15:07
- Last Modified Date
- 2022-11-07T17:26:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:* | 1 | OR | 5.48 | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 3.3
- Severity
- LOW
- Exploitability Score
- 6.5
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211203-0002/ | Third Party Advisory |
| https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/ | Exploit Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-8921 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8921 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:41:10 | Added to TrackCVE | |||
| 2022-12-05 15:12:47 | 2021-11-29T08:15Z | 2021-11-29T08:15:07 | CVE Published Date | updated |
| 2022-12-05 15:12:47 | 2022-11-07T17:26:41 | CVE Modified Date | updated | |
| 2022-12-05 15:12:47 | Analyzed | Vulnerability Status | updated | |
| 2022-12-05 15:12:51 | References | updated |