CVE-2021-47511
Alsa OSS Calculation Integer Overflow Imperfect Parsing
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately.
INFO
Published Date :
May 24, 2024, 3:15 p.m.
Last Modified :
May 24, 2024, 6:09 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2021-47511.
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).
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The following list is the news that have been mention
CVE-2021-47511 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47511 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 Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 24, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately. Added Reference kernel.org https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe [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-2021-47511 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-2021-47511
weaknesses.