fkie_nvd - fkie_cve-2025-39702

FKIE_CVE-2025-39702

Vulnerability from fkie_nvd - Published: 2025-09-05 18:15 - Updated: 2025-11-03 18:16

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a
	af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."
    }
  ],
  "id": "CVE-2025-39702",
  "lastModified": "2025-11-03T18:16:42.303",
  "metrics": {},
  "published": "2025-09-05T18:15:47.270",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-39702 (GCVE-0-2025-39702)

Vulnerability from cvelistv5 – Published: 2025-09-05 17:21 – Updated: 2025-11-03 17:42

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/3b348c9c8d2ca2c67…
	https://git.kernel.org/stable/c/86b6d34717fe0570a…
	https://git.kernel.org/stable/c/3ddd55cf19ed6cc62…
	https://git.kernel.org/stable/c/b3967c493799e63f6…
	https://git.kernel.org/stable/c/f7878d47560d61e3f…
	https://git.kernel.org/stable/c/a458b2902115b26a2…

Impacted products

Vendor

Product

Version

Linux

Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 86b6d34717fe0570afce07ee79b8eeb40341f831 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < b3967c493799e63f648e9c7b6cb063aa2aed04e7 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < f7878d47560d61e3f370aca3cebb8f42a55b990a (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < a458b2902115b26a25d67393b12ddd57d1216aaa (git)

Linux

Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.149 , ≤ 6.1.* (semver)
Unaffected: 6.6.103 , ≤ 6.6.* (semver)
Unaffected: 6.12.44 , ≤ 6.12.* (semver)
Unaffected: 6.16.4 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:30.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/seg6_hmac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "86b6d34717fe0570afce07ee79b8eeb40341f831",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "b3967c493799e63f648e9c7b6cb063aa2aed04e7",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "f7878d47560d61e3f370aca3cebb8f42a55b990a",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "a458b2902115b26a25d67393b12ddd57d1216aaa",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/seg6_hmac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.190",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.149",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.103",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.44",
                  "versionStartIncluding": "4.10",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:57:43.992Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa"
        }
      ],
      "title": "ipv6: sr: Fix MAC comparison to be constant-time",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39702",
    "datePublished": "2025-09-05T17:21:08.674Z",
    "dateReserved": "2025-04-16T07:20:57.115Z",
    "dateUpdated": "2025-11-03T17:42:30.669Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

FKIE_CVE-2025-39702

CVE-2025-39702 (GCVE-0-2025-39702)

Tags

Sightings

Nomenclature