SUSE-SU-2025:20880-1

Vulnerability from csaf_suse - Published: 2025-10-24 10:10 - Updated: 2026-09-20 18:19
Summary
Security update for kernel-livepatch-MICRO-6-0-RT_Update_11
Severity
Important
Notes
Title of the patch: Security update for kernel-livepatch-MICRO-6-0-RT_Update_11
Description of the patch: This update for kernel-livepatch-MICRO-6-0-RT_Update_11 fixes the following issues: - CVE-2025-38566: sunrpc: fix handling of server side tls alerts (bsc#1248376) - CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673) - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249534)
Patchnames: SUSE-SLE-Micro-6.0-kernel-170
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2025-38499
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-35-rt-0:2-1.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2025-38566
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 1 product, the same list as for CVE-2025-38499
Threats
Impact important
CVE-2025-38678
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected products
Recommended 1 product, the same list as for CVE-2025-38499
Threats
Impact important
References
To clipboard 

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  "vulnerabilities": [
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2025-38499"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nclone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns\n\nWhat we want is to verify there is that clone won\u0027t expose something\nhidden by a mount we wouldn\u0027t be able to undo.  \"Wouldn\u0027t be able to undo\"\nmay be a result of MNT_LOCKED on a child, but it may also come from\nlacking admin rights in the userns of the namespace mount belongs to.\n\nclone_private_mnt() checks the former, but not the latter.\n\nThere\u0027s a number of rather confusing CAP_SYS_ADMIN checks in various\nuserns during the mount, especially with the new mount API; they serve\ndifferent purposes and in case of clone_private_mnt() they usually,\nbut not always end up covering the missing check mentioned above.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-35-rt-0:2-1.1.x86_64"
        ]
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          "summary": "CVE-2025-38499",
          "url": "https://www.suse.com/security/cve/CVE-2025-38499"
        },
        {
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          "summary": "SUSE Bug 1247976 for CVE-2025-38499",
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          "summary": "SUSE Bug 1248673 for CVE-2025-38499",
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          "url": "https://bugzilla.suse.com/1251916"
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      ],
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-35-rt-0:2-1.1.x86_64"
          ]
        }
      ],
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
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          "category": "impact",
          "date": "2025-10-24T10:10:54Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38499"
    },
    {
      "cve": "CVE-2025-38566",
      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38566"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix handling of server side tls alerts\n\nScott Mayhew discovered a security exploit in NFS over TLS in\ntls_alert_recv() due to its assumption it can read data from\nthe msg iterator\u0027s kvec..\n\nkTLS implementation splits TLS non-data record payload between\nthe control message buffer (which includes the type such as TLS\naler or TLS cipher change) and the rest of the payload (say TLS\nalert\u0027s level/description) which goes into the msg payload buffer.\n\nThis patch proposes to rework how control messages are setup and\nused by sock_recvmsg().\n\nIf no control message structure is setup, kTLS layer will read and\nprocess TLS data record types. As soon as it encounters a TLS control\nmessage, it would return an error. At that point, NFS can setup a\nkvec backed msg buffer and read in the control message such as a\nTLS alert. Msg iterator can advance the kvec pointer as a part of\nthe copy process thus we need to revert the iterator before calling\ninto the tls_alert_recv.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "url": "https://www.suse.com/security/cve/CVE-2025-38566"
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        {
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          "product_ids": [
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          "date": "2025-10-24T10:10:54Z",
          "details": "important"
        }
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      "title": "CVE-2025-38566"
    },
    {
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2025-38678"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: reject duplicate device on updates\n\nA chain/flowtable update with duplicated devices in the same batch is\npossible. Unfortunately, netdev event path only removes the first\ndevice that is found, leaving unregistered the hook of the duplicated\ndevice.\n\nCheck if a duplicated device exists in the transaction batch, bail out\nwith EEXIST in such case.\n\nWARNING is hit when unregistering the hook:\n\n [49042.221275] WARNING: CPU: 4 PID: 8425 at net/netfilter/core.c:340 nf_hook_entry_head+0xaa/0x150\n [49042.221375] CPU: 4 UID: 0 PID: 8425 Comm: nft Tainted: G S                  6.16.0+ #170 PREEMPT(full)\n [...]\n [49042.221382] RIP: 0010:nf_hook_entry_head+0xaa/0x150",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-35-rt-0:2-1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38678",
          "url": "https://www.suse.com/security/cve/CVE-2025-38678"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249126 for CVE-2025-38678",
          "url": "https://bugzilla.suse.com/1249126"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249534 for CVE-2025-38678",
          "url": "https://bugzilla.suse.com/1249534"
        }
      ],
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-35-rt-0:2-1.1.x86_64"
          ]
        }
      ],
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            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
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          },
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          ]
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      ],
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          "category": "impact",
          "date": "2025-10-24T10:10:54Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38678"
    }
  ]
}



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