CVE-2022-49754
HighIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix a buffer overflow in mgmt_mesh_add() Smatch Warning: net/bluetooth/mgmt_util.c:375 mgmt_mesh_add() error: __memcpy() 'mesh_tx->param' too small (48 vs 50) Analysis: 'mesh_tx->param' is array of size 48. This is the destination. u8 param[sizeof(struct mgmt_cp_mesh_send) + 29]; // 19 + 29 = 48. But in the caller 'mesh_send' we reject only when len > 50. len > (MGMT_MESH_SEND_SIZE + 31) // 19 + 31 = 50.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-120CVE-2022-49754 is classified as CWE-120
See CWE-120 on MITRE CWE for full details on this weakness type.
Affected versions
Linux kernel versions
6.1
and later are affected. Fixed in
6.1.9,
6.2
and their respective stable series.
References
The following references provide additional information about CVE-2022-49754 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/2185e0fdbb2137f22a9dd9fcbf6481400d56299b
-
PatchKernel patch commithttps://git.kernel.org/stable/c/ed818fd8c531abf561b379995ee7cc4c68029464
Frequently asked questions
-
What is CVE-2022-49754?
CVE-2022-49754 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.1 onward and has been patched in 6.1.9 and 6.2. CVE-2022-49754 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2022-49754?
CVE-2022-49754 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2022-49754?
Yes — CVE-2022-49754 has been patched. Fixed versions include 6.1.9 and 6.2. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2022-49754 actively exploited?
No — CVE-2022-49754 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.