0.0
NA
CVE-2022-49733
ALSA OSS PCM Null Pointer Dereference Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.

INFO

Published Date :

March 2, 2025, 3:15 p.m.

Last Modified :

March 2, 2025, 3:15 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2022-49733 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-2022-49733.

URL Resource
https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0
https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb
https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86
https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36

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-2022-49733 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-49733 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]

    Mar. 05, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-362
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.148 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 5.19.9 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 5.4.215 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.68
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36 Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Mar. 02, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
    Added Reference https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0
    Added Reference https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb
    Added Reference https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86
    Added Reference https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
    Added Reference https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36
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-2022-49733 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-2022-49733 weaknesses.

NONE - Vulnerability Scoring System
: