Vulnerability-Lookup

FKIE_CVE-2026-53016

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-07-15 13:55

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer. Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a	Patch
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:38491	Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:39494	Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-53016	Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2492269	Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53016.json	Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
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          "programFiles": [
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          "vendor": "Red Hat",
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              "status": "unaffected",
              "version": "0:5.14.0-687.25.1.el9_8",
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          "cpes": [
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          "packageName": "kernel",
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        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
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        {
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          "vendor": "Red Hat"
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          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 8",
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          "cpes": [
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    {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - copy IV using skcipher ivsize\n\nAF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.\n\nccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller\u0027s IV\nbuffer while RFC3686 skciphers expose an 8-byte IV, so the restore\noverruns the provided buffer.\n\nUse crypto_skcipher_ivsize() to copy only the algorithm\u0027s IV length."
    }
  ],
  "id": "CVE-2026-53016",
  "lastModified": "2026-07-15T13:55:21.843",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
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  "published": "2026-06-24T17:17:12.893",
  "references": [
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-805"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

CVE-2026-53016 (GCVE-0-2026-53016)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-07-15 02:47

Title

crypto: ccp - copy IV using skcipher ivsize

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-805 - Buffer Access with Incorrect Length Value

Assigner

Linux

References

13 references

URL	Tags
https://git.kernel.org/stable/c/939061b2d0f7f1511…
https://git.kernel.org/stable/c/798d409a8949f3f49…
https://git.kernel.org/stable/c/dfb2cf43482981926…
https://git.kernel.org/stable/c/eecee15e263ccb8cd…
https://git.kernel.org/stable/c/bb01d8f1f385bc903…
https://git.kernel.org/stable/c/df9784bb5b637ac80…
https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc…
https://git.kernel.org/stable/c/a7a1f3cdd64d8a165…
https://access.redhat.com/security/cve/CVE-2026-53016	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492269	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:39494	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:38491	vendor-advisoryx_refsource_REDHAT

Impacted products

8 products

Vendor	Product	Version
Linux	Linux	Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < 939061b2d0f7f15114e34b4ce878ef50ff4089c3 (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < 798d409a8949f3f495f238549b86de2886b129bd (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < dfb2cf434829819268fe50f41542aad318ad62b2 (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < eecee15e263ccb8cd77170a56ab6c969cb54dd6a (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < bb01d8f1f385bc9034ca114d3508c7fdea24fc9a (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < df9784bb5b637ac80f4a2768a58ca9a50bef28a9 (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < 227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 (git) Affected: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f , < a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4 (git)
Linux	Linux	Affected: 3.14 Unaffected: 0 , < 3.14 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.34.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.25.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
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            "cpes": [
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            "defaultStatus": "unaffected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
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            "cpes": [
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            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
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            "cpes": [
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            "defaultStatus": "unaffected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
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            "cpes": [
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            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
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            "cpes": [
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            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
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            "cpes": [
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            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
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          {
            "lang": "en",
            "value": "A flaw was found in the Linux kernel\u0027s cryptographic coprocessor (CCP) driver. When processing AF_ALG rfc3686-ctr-aes-ccp requests, the ccp_aes_complete() function attempts to restore more data than the allocated buffer for the Initialization Vector (IV) can hold. This leads to a buffer overrun, which can result in memory corruption within the kernel."
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        ],
        "metrics": [
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            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Moderate"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
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              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-805",
                "description": "Buffer Access with Incorrect Length Value",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
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          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
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              "x_refsource_REDHAT"
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            "url": "https://access.redhat.com/security/cve/CVE-2026-53016"
          },
          {
            "name": "RHBZ#2492269",
            "tags": [
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              "x_refsource_REDHAT"
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              "x_refsource_REDHAT"
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          },
          {
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              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:38491"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:39494: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:38491: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"
          }
        ],
        "timeline": [
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            "time": "2026-06-24T00:00:00.000Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-06-24T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "kernel: crypto: ccp - copy IV using skcipher ivsize",
        "workarounds": [
          {
            "lang": "en",
            "value": "To mitigate this issue, prevent module ccp-crypto from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
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    "cna": {
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          "product": "Linux",
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          ],
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              "version": "0",
              "versionType": "semver"
            },
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            },
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            },
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
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            },
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
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            },
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              "status": "unaffected",
              "version": "6.12.91",
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            },
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              "status": "unaffected",
              "version": "6.18.33",
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            },
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              "lessThanOrEqual": "7.0.*",
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              "version": "7.0.10",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
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      ],
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53016",
    "datePublished": "2026-06-24T16:29:26.272Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

FKIE_CVE-2026-53016

CVE-2026-53016 (GCVE-0-2026-53016)

Tags

Sightings

Nomenclature