SUSE-SU-2021:0869-1

Vulnerability from csaf_suse - Published: 2021-03-17 16:28 - Updated: 2021-03-17 16:28
Summary
Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-24_49 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace could escape to unintended filesystem locations (bsc#1179779).
Patchnames
SUSE-2021-869,SUSE-SLE-Module-Live-Patching-15-SP2-2021-869
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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{
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    "distribution": {
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        "title": "Description of the patch"
      },
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        "title": "Patchnames"
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        "category": "legal_disclaimer",
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      },
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        "url": "https://www.suse.com/security/cve/CVE-2020-29368/"
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        "url": "https://www.suse.com/security/cve/CVE-2020-29373/"
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        },
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-29368",
      "ids": [
        {
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          "text": "https://www.suse.com/security/cve/CVE-2020-29368"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
        ]
      },
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          "summary": "CVE-2020-29368",
          "url": "https://www.suse.com/security/cve/CVE-2020-29368"
        },
        {
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          "summary": "SUSE Bug 1179428 for CVE-2020-29368",
          "url": "https://bugzilla.suse.com/1179428"
        },
        {
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          "summary": "SUSE Bug 1179660 for CVE-2020-29368",
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        }
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          "product_ids": [
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      ],
      "scores": [
        {
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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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            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
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          "date": "2021-03-17T16:28:03Z",
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      "title": "CVE-2020-29368"
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          "text": "An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.",
          "title": "CVE description"
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      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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          "date": "2021-03-17T16:28:03Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-29373"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.