cnvd - cnvd-2025-03434

cnvd-2025-03434

Vulnerability from cnvd

Title: Linux kernel缓冲区溢出漏洞（CNVD-2025-03434）

Description:

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。

Linux kernel存在缓冲区溢出漏洞，该漏洞源于pktgen的get_imix_entries函数中对imix_entries数组的边界检查错误，攻击者可利用该漏洞导致在传递大量条目时访问数组越界，可能引发系统崩溃。

Severity: 中

Patch Name: Linux kernel缓冲区溢出漏洞（CNVD-2025-03434）的补丁

Patch Description:

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。

Linux kernel存在缓冲区溢出漏洞，该漏洞源于pktgen的get_imix_entries函数中对imix_entries数组的边界检查错误，攻击者可利用该漏洞导致在传递大量条目时访问数组越界，可能引发系统崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29

Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-21680

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-21680",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-21680"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8epktgen\u7684get_imix_entries\u51fd\u6570\u4e2d\u5bf9imix_entries\u6570\u7ec4\u7684\u8fb9\u754c\u68c0\u67e5\u9519\u8bef\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5728\u4f20\u9012\u5927\u91cf\u6761\u76ee\u65f6\u8bbf\u95ee\u6570\u7ec4\u8d8a\u754c\uff0c\u53ef\u80fd\u5f15\u53d1\u7cfb\u7edf\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-03434",
  "openTime": "2025-02-21",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8epktgen\u7684get_imix_entries\u51fd\u6570\u4e2d\u5bf9imix_entries\u6570\u7ec4\u7684\u8fb9\u754c\u68c0\u67e5\u9519\u8bef\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5728\u4f20\u9012\u5927\u91cf\u6761\u76ee\u65f6\u8bbf\u95ee\u6570\u7ec4\u8d8a\u754c\uff0c\u53ef\u80fd\u5f15\u53d1\u7cfb\u7edf\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2025-03434\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-21680",
  "serverity": "\u4e2d",
  "submitTime": "2025-02-17",
  "title": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2025-03434\uff09"
}

CVE-2025-21680 (GCVE-0-2025-21680)

Vulnerability from cvelistv5

Published

2025-01-31 11:25

Modified

2025-05-04 07:18

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: pktgen: Avoid out-of-bounds access in get_imix_entries Passing a sufficient amount of imix entries leads to invalid access to the pkt_dev->imix_entries array because of the incorrect boundary check. UBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24 index 20 is out of range for type 'imix_pkt [20]' CPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl lib/dump_stack.c:117 __ubsan_handle_out_of_bounds lib/ubsan.c:429 get_imix_entries net/core/pktgen.c:874 pktgen_if_write net/core/pktgen.c:1063 pde_write fs/proc/inode.c:334 proc_reg_write fs/proc/inode.c:346 vfs_write fs/read_write.c:593 ksys_write fs/read_write.c:644 do_syscall_64 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130 Found by Linux Verification Center (linuxtesting.org) with SVACE. [ fp: allow to fill the array completely; minor changelog cleanup ]

References

▼	URL	Tags
	https://git.kernel.org/stable/c/3450092cc2d1c311c5ea92a2486daa2a33520ea5
	https://git.kernel.org/stable/c/e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486
	https://git.kernel.org/stable/c/7cde21f52042aa2e29a654458166b873d2ae66b3
	https://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29
	https://git.kernel.org/stable/c/76201b5979768500bca362871db66d77cb4c225e

Impacted products

Vendor

Product

Version

▼

Linux

Version: 52a62f8603f97e720882c8f5aff2767ac6a11d5f
Version: 52a62f8603f97e720882c8f5aff2767ac6a11d5f
Version: 52a62f8603f97e720882c8f5aff2767ac6a11d5f
Version: 52a62f8603f97e720882c8f5aff2767ac6a11d5f
Version: 52a62f8603f97e720882c8f5aff2767ac6a11d5f

Linux

Version: 5.15

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/pktgen.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3450092cc2d1c311c5ea92a2486daa2a33520ea5",
              "status": "affected",
              "version": "52a62f8603f97e720882c8f5aff2767ac6a11d5f",
              "versionType": "git"
            },
            {
              "lessThan": "e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486",
              "status": "affected",
              "version": "52a62f8603f97e720882c8f5aff2767ac6a11d5f",
              "versionType": "git"
            },
            {
              "lessThan": "7cde21f52042aa2e29a654458166b873d2ae66b3",
              "status": "affected",
              "version": "52a62f8603f97e720882c8f5aff2767ac6a11d5f",
              "versionType": "git"
            },
            {
              "lessThan": "1a9b65c672ca9dc4ba52ca2fd54329db9580ce29",
              "status": "affected",
              "version": "52a62f8603f97e720882c8f5aff2767ac6a11d5f",
              "versionType": "git"
            },
            {
              "lessThan": "76201b5979768500bca362871db66d77cb4c225e",
              "status": "affected",
              "version": "52a62f8603f97e720882c8f5aff2767ac6a11d5f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/pktgen.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.177",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.127",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.74",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.177",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.127",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.74",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.11",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npktgen: Avoid out-of-bounds access in get_imix_entries\n\nPassing a sufficient amount of imix entries leads to invalid access to the\npkt_dev-\u003eimix_entries array because of the incorrect boundary check.\n\nUBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24\nindex 20 is out of range for type \u0027imix_pkt [20]\u0027\nCPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl lib/dump_stack.c:117\n__ubsan_handle_out_of_bounds lib/ubsan.c:429\nget_imix_entries net/core/pktgen.c:874\npktgen_if_write net/core/pktgen.c:1063\npde_write fs/proc/inode.c:334\nproc_reg_write fs/proc/inode.c:346\nvfs_write fs/read_write.c:593\nksys_write fs/read_write.c:644\ndo_syscall_64 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[ fp: allow to fill the array completely; minor changelog cleanup ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:18:55.584Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3450092cc2d1c311c5ea92a2486daa2a33520ea5"
        },
        {
          "url": "https://git.kernel.org/stable/c/e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486"
        },
        {
          "url": "https://git.kernel.org/stable/c/7cde21f52042aa2e29a654458166b873d2ae66b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29"
        },
        {
          "url": "https://git.kernel.org/stable/c/76201b5979768500bca362871db66d77cb4c225e"
        }
      ],
      "title": "pktgen: Avoid out-of-bounds access in get_imix_entries",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21680",
    "datePublished": "2025-01-31T11:25:40.831Z",
    "dateReserved": "2024-12-29T08:45:45.738Z",
    "dateUpdated": "2025-05-04T07:18:55.584Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted