CVE-2023-53705 (GCVE-0-2023-53705)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2025-10-22 13:23
VLAI?
Title
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
Summary
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.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 59e656d0d4a84ea0ee9a39c6f69160a3effccc94 (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 04bf69e3de435d793a203aacc4b774f8f9f2baeb (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 011f47c8b8389154f996f5f69da8efc3a3beefef (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < e5f82688ae10f5f386952e65e941bb8868ee54dc (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 9b92e2d0eb696d7586ba832c8854653b59887da0 (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 91dd8aab9c9f193210681b86b6b92840ffe74f0c (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < ae68c0f7edbc9a294094ce03a0aaf45aa489ce40 (git)
Affected: c61a404325093250b676f40ad8f4dd00f3bcab5f , < 878ecb0897f4737a4c9401f3523fd49589025671 (git)
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    Linux Linux Affected: 2.6.19
Unaffected: 0 , < 2.6.19 (semver)
Unaffected: 4.14.316 , ≤ 4.14.* (semver)
Unaffected: 4.19.284 , ≤ 4.19.* (semver)
Unaffected: 5.4.244 , ≤ 5.4.* (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.114 , ≤ 5.15.* (semver)
Unaffected: 6.1.31 , ≤ 6.1.* (semver)
Unaffected: 6.3.5 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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Show details on NVD website

{
  "containers": {
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            "net/ipv6/exthdrs_core.c"
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              "version": "0",
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              "status": "unaffected",
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              "status": "unaffected",
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              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
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              "lessThanOrEqual": "5.10.*",
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              "version": "5.10.181",
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              "lessThanOrEqual": "5.15.*",
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              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
            }
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix out-of-bounds access in ipv6_find_tlv()\n\noptlen is fetched without checking whether there is more than one byte to parse.\nIt can lead to out-of-bounds access.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-10-22T13:23:42.641Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94"
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    "cveId": "CVE-2023-53705",
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    "dateReserved": "2025-10-22T13:21:37.346Z",
    "dateUpdated": "2025-10-22T13:23:42.641Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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