suse-su-2021:0835-1
Vulnerability from csaf_suse
Published
2021-03-17 16:14
Modified
2021-03-17 16:14
Summary
Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)
Description of the patch
This update for the Linux Kernel 4.4.180-94_138 fixes several issues. The following security issues were fixed: - CVE-2020-27786: Fixed a potential user after free which could have led to memory corruption or privilege escalation (bsc#1179616). - CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#1178684). - CVE-2020-25645: Fixed an issue where the traffic between two Geneve endpoints may have been unencrypted when IPsec was configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted (bsc#1177513). - CVE-2020-0429: Fixed a potential memory corruption due to a use after free which could have led local escalation of privilege with System execution privileges needed (bsc#1176931). - CVE-2020-1749: Fixed an issue in some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6 where the kernel was not correctly routing tunneled data over the encrypted link rather sending the data unencrypted (bsc#1165631).
Patchnames
SUSE-2021-835,SUSE-SLE-SAP-12-SP2-2021-835,SUSE-SLE-SAP-12-SP3-2021-828,SUSE-SLE-SERVER-12-SP2-2021-835,SUSE-SLE-SERVER-12-SP3-2021-828
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": "In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-152735806",
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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",
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "details": "important"
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2020-1749"
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          "text": "A flaw was found in the Linux kernel\u0027s implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn\u0027t correctly routing tunneled data over the encrypted link; rather sending the data unencrypted. This would allow anyone in between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.",
          "title": "CVE description"
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          "summary": "SUSE Bug 1165629 for CVE-2020-1749",
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      "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 Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:14:13Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-1749"
    },
    {
      "cve": "CVE-2020-25645",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-25645"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-25645",
          "url": "https://www.suse.com/security/cve/CVE-2020-25645"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1177511 for CVE-2020-25645",
          "url": "https://bugzilla.suse.com/1177511"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1177513 for CVE-2020-25645",
          "url": "https://bugzilla.suse.com/1177513"
        }
      ],
      "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 Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:14:13Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-25645"
    },
    {
      "cve": "CVE-2020-27786",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-27786"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in the Linux kernel\u0027s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-27786",
          "url": "https://www.suse.com/security/cve/CVE-2020-27786"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179601 for CVE-2020-27786",
          "url": "https://bugzilla.suse.com/1179601"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179616 for CVE-2020-27786",
          "url": "https://bugzilla.suse.com/1179616"
        }
      ],
      "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 Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.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 Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:14:13Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-27786"
    },
    {
      "cve": "CVE-2020-28374",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-28374"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-28374",
          "url": "https://www.suse.com/security/cve/CVE-2020-28374"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178372 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1178372"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178684 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1178684"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1180676 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1180676"
        }
      ],
      "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 Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_149-default-2-2.2.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_138-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:14:13Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-28374"
    }
  ]
}


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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.
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  • 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.