CVE-2024-38388
ALSA: HDA Control Memory Leak Unlink Information Disclosure
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup Use the control private_free callback to free the associated data block. This ensures that the memory won't leak, whatever way the control gets destroyed. The original implementation didn't actually remove the ALSA controls in hda_cs_dsp_control_remove(). It only freed the internal tracking structure. This meant it was possible to remove/unload the amp driver while leaving its ALSA controls still present in the soundcard. Obviously attempting to access them could cause segfaults or at least dereferencing stale pointers.
INFO
Published Date :
June 21, 2024, 11:15 a.m.
Last Modified :
June 21, 2024, 11:22 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2024-38388
.
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CVE-2024-38388
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-38388
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.
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CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup Use the control private_free callback to free the associated data block. This ensures that the memory won't leak, whatever way the control gets destroyed. The original implementation didn't actually remove the ALSA controls in hda_cs_dsp_control_remove(). It only freed the internal tracking structure. This meant it was possible to remove/unload the amp driver while leaving its ALSA controls still present in the soundcard. Obviously attempting to access them could cause segfaults or at least dereferencing stale pointers. Added Reference kernel.org https://git.kernel.org/stable/c/191dc1b2ff0fb35e7aff15a53224837637df8bff [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6e359be4975006ff72818e79dad8fe48293f2eb2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3291486af5636540980ea55bae985f3eaa5b0740 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/172811e3a557d8681a5e2d0f871dc04a2d17eb13 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-38388
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-2024-38388
weaknesses.