CVE-2023-52834
MediumIn the Linux kernel, the following vulnerability has been resolved: atl1c: Work around the DMA RX overflow issue This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540.
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
References
The following references provide additional information about CVE-2023-52834 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fb
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PatchKernel patch commithttps://git.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afa
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PatchKernel patch commithttps://git.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6
Frequently asked questions
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What is CVE-2023-52834?
CVE-2023-52834 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2023-52834 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-2023-52834?
CVE-2023-52834 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-2023-52834?
No patch is currently available for CVE-2023-52834. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-52834 actively exploited?
No — CVE-2023-52834 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.