4.7
MEDIUM
CVE-2022-48997
"QEMU Linux TPM Character Device Non-Atomics Race Condition"
Description

In the Linux kernel, the following vulnerability has been resolved: char: tpm: Protect tpm_pm_suspend with locks Currently tpm transactions are executed unconditionally in tpm_pm_suspend() function, which may lead to races with other tpm accessors in the system. Specifically, the hw_random tpm driver makes use of tpm_get_random(), and this function is called in a loop from a kthread, which means it's not frozen alongside userspace, and so can race with the work done during system suspend: tpm tpm0: tpm_transmit: tpm_recv: error -52 tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Call Trace: tpm_tis_status.cold+0x19/0x20 tpm_transmit+0x13b/0x390 tpm_transmit_cmd+0x20/0x80 tpm1_pm_suspend+0xa6/0x110 tpm_pm_suspend+0x53/0x80 __pnp_bus_suspend+0x35/0xe0 __device_suspend+0x10f/0x350 Fix this by calling tpm_try_get_ops(), which itself is a wrapper around tpm_chip_start(), but takes the appropriate mutex. [Jason: reworked commit message, added metadata]

INFO

Published Date :

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

Last Modified :

Nov. 7, 2024, 5:07 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.0
Affected Products

The following products are affected by CVE-2022-48997 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-2022-48997.

URL Resource
https://git.kernel.org/stable/c/23393c6461422df5bf8084a086ada9a7e17dc2ba Patch
https://git.kernel.org/stable/c/25b78bf98b07ff5aceb9b1e24f72ec0236c5c053 Patch
https://git.kernel.org/stable/c/4e0d6c687c925e27fd4bc78a2721d10acf5614d6 Patch
https://git.kernel.org/stable/c/571b6bbbf54d835ea6120f65575cb55cd767e603 Patch
https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6 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-2022-48997 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48997 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]

    Nov. 07, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/23393c6461422df5bf8084a086ada9a7e17dc2ba No Types Assigned https://git.kernel.org/stable/c/23393c6461422df5bf8084a086ada9a7e17dc2ba Patch
    Changed Reference Type https://git.kernel.org/stable/c/25b78bf98b07ff5aceb9b1e24f72ec0236c5c053 No Types Assigned https://git.kernel.org/stable/c/25b78bf98b07ff5aceb9b1e24f72ec0236c5c053 Patch
    Changed Reference Type https://git.kernel.org/stable/c/4e0d6c687c925e27fd4bc78a2721d10acf5614d6 No Types Assigned https://git.kernel.org/stable/c/4e0d6c687c925e27fd4bc78a2721d10acf5614d6 Patch
    Changed Reference Type https://git.kernel.org/stable/c/571b6bbbf54d835ea6120f65575cb55cd767e603 No Types Assigned https://git.kernel.org/stable/c/571b6bbbf54d835ea6120f65575cb55cd767e603 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6 No Types Assigned https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6 Patch
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.4.226 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.158 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.82 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.0.12 *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:*:*:*:*:*:*
  • 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: char: tpm: Protect tpm_pm_suspend with locks Currently tpm transactions are executed unconditionally in tpm_pm_suspend() function, which may lead to races with other tpm accessors in the system. Specifically, the hw_random tpm driver makes use of tpm_get_random(), and this function is called in a loop from a kthread, which means it's not frozen alongside userspace, and so can race with the work done during system suspend: tpm tpm0: tpm_transmit: tpm_recv: error -52 tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Call Trace: tpm_tis_status.cold+0x19/0x20 tpm_transmit+0x13b/0x390 tpm_transmit_cmd+0x20/0x80 tpm1_pm_suspend+0xa6/0x110 tpm_pm_suspend+0x53/0x80 __pnp_bus_suspend+0x35/0xe0 __device_suspend+0x10f/0x350 Fix this by calling tpm_try_get_ops(), which itself is a wrapper around tpm_chip_start(), but takes the appropriate mutex. [Jason: reworked commit message, added metadata]
    Added Reference kernel.org https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/4e0d6c687c925e27fd4bc78a2721d10acf5614d6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/571b6bbbf54d835ea6120f65575cb55cd767e603 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/25b78bf98b07ff5aceb9b1e24f72ec0236c5c053 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/23393c6461422df5bf8084a086ada9a7e17dc2ba [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-2022-48997 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-2022-48997 weaknesses.

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