CVE-2023-53705
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bounds access in ipv6_find_tlv() optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
Affected versions
Linux kernel versions
2.6.19
and later are affected. Fixed in
4.14.316,
4.19.284,
5.4.244,
5.10.181,
5.15.114,
6.1.31,
6.3.5,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-53705 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/011f47c8b8389154f996f5f69da8efc3a3beefef
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PatchKernel patch commithttps://git.kernel.org/stable/c/04bf69e3de435d793a203aacc4b774f8f9f2baeb
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PatchKernel patch commithttps://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94
Frequently asked questions
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What is CVE-2023-53705?
CVE-2023-53705 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.19 onward and has been patched in 4.14.316, 4.19.284, 5.4.244 and others. CVE-2023-53705 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-53705?
Yes — CVE-2023-53705 has been patched. Fixed versions include 4.14.316, 4.19.284, 5.4.244 and others. If you are running Linux kernel 2.6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-53705 actively exploited?
No — CVE-2023-53705 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.