CVE-2023-52672
MediumIn the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write. Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue. [Christian Brauner <[email protected]>: rewrite to account for watch queues]
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-400CVE-2023-52672 is a Uncontrolled Resource Consumption vulnerability
What is Uncontrolled Resource Consumption?
The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE
Affected versions
Linux kernel versions
5.8
and later are affected. Fixed in
5.10.210,
5.15.149,
6.1.76,
6.6.15,
6.7.3,
6.8
and their respective stable series.
References
7 total-
Patch
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Frequently asked questions
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What is CVE-2023-52672?
CVE-2023-52672 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . It affects Linux kernel versions from 5.8 onward and has been patched in 5.10.210, 5.15.149, 6.1.76 and others. CVE-2023-52672 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2023-52672?
CVE-2023-52672 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2023-52672?
Yes. CVE-2023-52672 has been patched. Fixed versions include 5.10.210, 5.15.149, 6.1.76 and others. If you are running Linux kernel 5.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-52672 actively exploited?
No. CVE-2023-52672 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.