suse-su-2023:4166-1
Vulnerability from csaf_suse
Published
2023-10-24 08:05
Modified
2023-10-24 08:05
Summary
Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)

Notes

Title of the patch
Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)
Description of the patch
This update for the Linux Kernel 5.14.21-150500_11 fixes several issues. The following security issues were fixed: - CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1215118). - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440). - CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo (bsc#1214812). - CVE-2023-3390: Fixed an use-after-free vulnerability in the netfilter subsystem in net/netfilter/nf_tables_api.c that could allow a local attacker with user access to cause a privilege escalation issue (bsc#1212934).
Patchnames
SUSE-2023-4166,SUSE-SLE-Module-Live-Patching-15-SP4-2023-4171,SUSE-SLE-Module-Live-Patching-15-SP5-2023-4166
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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      "text": "important"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
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        "text": "This update for the Linux Kernel 5.14.21-150500_11 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1215118).\n- CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440).\n- CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo (bsc#1214812).\n- CVE-2023-3390: Fixed an use-after-free vulnerability in the netfilter subsystem in net/netfilter/nf_tables_api.c that could allow a local attacker with user access to cause a privilege escalation issue (bsc#1212934).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2023-4166,SUSE-SLE-Module-Live-Patching-15-SP4-2023-4171,SUSE-SLE-Module-Live-Patching-15-SP5-2023-4166",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
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    "publisher": {
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      },
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        "category": "self",
        "summary": "SUSE Bug 1212934",
        "url": "https://bugzilla.suse.com/1212934"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1214812",
        "url": "https://bugzilla.suse.com/1214812"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1215118",
        "url": "https://bugzilla.suse.com/1215118"
      },
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        "summary": "SUSE Bug 1215440",
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        "summary": "SUSE CVE CVE-2023-4623 page",
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    ],
    "title": "Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)",
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      "initial_release_date": "2023-10-24T08:05:11Z",
      "revision_history": [
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                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP4",
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  "vulnerabilities": [
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      "cve": "CVE-2023-3390",
      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-3390"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free vulnerability was found in the Linux kernel\u0027s netfilter subsystem in net/netfilter/nf_tables_api.c.\n\nMishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.\n\nWe recommend upgrading past commit  1240eb93f0616b21c675416516ff3d74798fdc97.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-3390",
          "url": "https://www.suse.com/security/cve/CVE-2023-3390"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1212846 for CVE-2023-3390",
          "url": "https://bugzilla.suse.com/1212846"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1212934 for CVE-2023-3390",
          "url": "https://bugzilla.suse.com/1212934"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1213245 for CVE-2023-3390",
          "url": "https://bugzilla.suse.com/1213245"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1216225 for CVE-2023-3390",
          "url": "https://bugzilla.suse.com/1216225"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "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 Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "scores": [
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            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "threats": [
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          "category": "impact",
          "date": "2023-10-24T08:05:11Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-3390"
    },
    {
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2023-4004"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free flaw was found in the Linux kernel\u0027s netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-4004",
          "url": "https://www.suse.com/security/cve/CVE-2023-4004"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1213812 for CVE-2023-4004",
          "url": "https://bugzilla.suse.com/1213812"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1214812 for CVE-2023-4004",
          "url": "https://bugzilla.suse.com/1214812"
        }
      ],
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
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          "date": "2023-10-24T08:05:11Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4004"
    },
    {
      "cve": "CVE-2023-4147",
      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-4147"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free flaw was found in the Linux kernel\u0027s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-4147",
          "url": "https://www.suse.com/security/cve/CVE-2023-4147"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1213968 for CVE-2023-4147",
          "url": "https://bugzilla.suse.com/1213968"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215118 for CVE-2023-4147",
          "url": "https://bugzilla.suse.com/1215118"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "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 Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-10-24T08:05:11Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4147"
    },
    {
      "cve": "CVE-2023-4623",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-4623"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.\n\nIf a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.\n\nWe recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-4623",
          "url": "https://www.suse.com/security/cve/CVE-2023-4623"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215115 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1215115"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215440 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1215440"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217444 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1217444"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217531 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1217531"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1219698 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1219698"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221578 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221578"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221598 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221598"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "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 Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-10-24T08:05:11Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4623"
    }
  ]
}


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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.