SUSE-SU-2021:2057-1

Vulnerability from csaf_suse - Published: 2021-06-18 09:44 - Updated: 2021-06-18 09:44
Summary
Security update for the Linux Kernel (Live Patch 24 for SLE 15)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 24 for SLE 15)
Description of the patch: This update for the Linux Kernel 4.12.14-150_72 fixes several issues. The following security issues were fixed: - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484). - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060). - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
Patchnames: SUSE-2021-2057,SUSE-SLE-Module-Live-Patching-15-2021-2057
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

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    "category": "csaf_security_advisory",
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    "distribution": {
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        "text": "This update for the Linux Kernel 4.12.14-150_72 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).\n- CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111).\n- CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060).\n- CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2021-2057,SUSE-SLE-Module-Live-Patching-15-2021-2057",
        "title": "Patchnames"
      },
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      "id": "SUSE-SU-2021:2057-1",
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        "category": "vendor",
        "name": "SUSE"
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    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15",
          "product_id": "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15"
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      {
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        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15"
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  "vulnerabilities": [
    {
      "cve": "CVE-2021-23134",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23134"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "summary": "CVE-2021-23134",
          "url": "https://www.suse.com/security/cve/CVE-2021-23134"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186060 for CVE-2021-23134",
          "url": "https://bugzilla.suse.com/1186060"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186061 for CVE-2021-23134",
          "url": "https://bugzilla.suse.com/1186061"
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        {
          "category": "external",
          "summary": "SUSE Bug 1220739 for CVE-2021-23134",
          "url": "https://bugzilla.suse.com/1220739"
        }
      ],
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        {
          "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:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.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:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-06-18T09:44:40Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-23134"
    },
    {
      "cve": "CVE-2021-32399",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-32399"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-32399",
          "url": "https://www.suse.com/security/cve/CVE-2021-32399"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1184611 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1184611"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1185898 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1185898"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1185899 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1185899"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1196174 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1196174"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1200084 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1200084"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1201734 for CVE-2021-32399",
          "url": "https://bugzilla.suse.com/1201734"
        }
      ],
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          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
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          "date": "2021-06-18T09:44:40Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-32399"
    },
    {
      "cve": "CVE-2021-33034",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-33034"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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          "url": "https://www.suse.com/security/cve/CVE-2021-33034"
        },
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          "category": "external",
          "summary": "SUSE Bug 1186111 for CVE-2021-33034",
          "url": "https://bugzilla.suse.com/1186111"
        },
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          "summary": "SUSE Bug 1186285 for CVE-2021-33034",
          "url": "https://bugzilla.suse.com/1186285"
        }
      ],
      "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:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
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          "date": "2021-06-18T09:44:40Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-33034"
    },
    {
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      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-33200"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux-\u003ealu_limit.",
          "title": "CVE description"
        }
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        ]
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          "url": "https://www.suse.com/security/cve/CVE-2021-33200"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186484 for CVE-2021-33200",
          "url": "https://bugzilla.suse.com/1186484"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186498 for CVE-2021-33200",
          "url": "https://bugzilla.suse.com/1186498"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1224878 for CVE-2021-33200",
          "url": "https://bugzilla.suse.com/1224878"
        }
      ],
      "remediations": [
        {
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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 Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_72-default-2-2.1.x86_64"
          ]
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      "threats": [
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          "category": "impact",
          "date": "2021-06-18T09:44:40Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-33200"
    }
  ]
}


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Sightings

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  • 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.
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  • 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.


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