CVE-2022-49754
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49754
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49754.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49754
- Downstream
- Published
- 2025-03-27T16:43:02Z
- Modified
- 2025-10-21T11:06:44.258177Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Bluetooth: Fix a buffer overflow in mgmt_mesh_add()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix a buffer overflow in mgmtmeshadd()
Smatch Warning: net/bluetooth/mgmtutil.c:375 mgmtmeshadd() error: _memcpy() 'mesh_tx->param' too small (48 vs 50)
Analysis:
'meshtx->param' is array of size 48. This is the destination. u8 param[sizeof(struct mgmtcpmeshsend) + 29]; // 19 + 29 = 48.
But in the caller 'meshsend' we reject only when len > 50. len > (MGMTMESHSENDSIZE + 31) // 19 + 31 = 50.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb338d91703fae6f6afd67f3f75caa3b8f36ddef3Fixeded818fd8c531abf561b379995ee7cc4c68029464
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb338d91703fae6f6afd67f3f75caa3b8f36ddef3Fixed2185e0fdbb2137f22a9dd9fcbf6481400d56299b