5.5
MEDIUM
CVE-2022-48947
Linux Bluetooth L2CAP Integer Overflow
Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix u8 overflow By keep sending L2CAP_CONF_REQ packets, chan->num_conf_rsp increases multiple times and eventually it will wrap around the maximum number (i.e., 255). This patch prevents this by adding a boundary check with L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Note: Linux version 6.1.0-rc2 (x86_64) 0.264594 = Note: Bluetooth subsystem version 2.22 0.264636 @ MGMT Open: btmon (privileged) version 1.22 {0x0001} 0.272191 = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privileged) version 2.22 {0x0002} 13.890741 = Open Index: 00:00:00:00:00:00 [hci0] 13.900426 (...) > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #32 [hci0] 14.273106 invalid packet size (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ > ACL Data RX: Handle 200 flags 0x00 dlen 1547 #33 [hci0] 14.273561 invalid packet size (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #34 [hci0] 14.274390 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #35 [hci0] 14.274932 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Bluetooth daemon 5.43 14.401828 > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #36 [hci0] 14.275753 invalid packet size (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@...

INFO

Published Date :

Oct. 21, 2024, 8:15 p.m.

Last Modified :

Oct. 25, 2024, 8:11 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2022-48947 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-48947.

URL Resource
https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29 Patch
https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e Patch
https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead Patch
https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a Patch
https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7 Patch
https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b Patch
https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765 Patch
https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6 Patch

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-48947 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48947 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Oct. 25, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29 No Types Assigned https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29 Patch
    Changed Reference Type https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e No Types Assigned https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e Patch
    Changed Reference Type https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead No Types Assigned https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead Patch
    Changed Reference Type https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a No Types Assigned https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a Patch
    Changed Reference Type https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7 No Types Assigned https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7 Patch
    Changed Reference Type https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b No Types Assigned https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b Patch
    Changed Reference Type https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765 No Types Assigned https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765 Patch
    Changed Reference Type https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6 No Types Assigned https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6 Patch
    Added CWE NIST CWE-190
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.337 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.303 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.270 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.229 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.161 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.85 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.0.15 *cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix u8 overflow By keep sending L2CAP_CONF_REQ packets, chan->num_conf_rsp increases multiple times and eventually it will wrap around the maximum number (i.e., 255). This patch prevents this by adding a boundary check with L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Note: Linux version 6.1.0-rc2 (x86_64) 0.264594 = Note: Bluetooth subsystem version 2.22 0.264636 @ MGMT Open: btmon (privileged) version 1.22 {0x0001} 0.272191 = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privileged) version 2.22 {0x0002} 13.890741 = Open Index: 00:00:00:00:00:00 [hci0] 13.900426 (...) > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #32 [hci0] 14.273106 invalid packet size (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ > ACL Data RX: Handle 200 flags 0x00 dlen 1547 #33 [hci0] 14.273561 invalid packet size (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #34 [hci0] 14.274390 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #35 [hci0] 14.274932 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Bluetooth daemon 5.43 14.401828 > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #36 [hci0] 14.275753 invalid packet size (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@...
    Added Reference kernel.org https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48947 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-48947 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: