Vulnerability-Lookup

GHSA-MF72-CF87-P3P2

Vulnerability from github – Published: 2022-05-24 17:24 – Updated: 2022-05-24 17:24

Details

Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions.

Show details on source website

JSON

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  ],
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    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-29T18:15:00Z",
    "severity": "MODERATE"
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  "id": "GHSA-mf72-cf87-p3p2",
  "modified": "2022-05-24T17:24:37Z",
  "published": "2022-05-24T17:24:37Z",
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CVE-2020-15707 (GCVE-0-2020-15707)

Vulnerability from cvelistv5 – Published: 2020-07-29 17:45 – Updated: 2024-09-17 03:07

Title

GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.

Summary

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H

CWE

CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

Assigner

canonical mitre root

References

17 references

URL	Tags
https://www.eclypsium.com/2020/07/29/theres-a-hol…	x_refsource_CONFIRM
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBas…	vendor-advisoryx_refsource_UBUNTU
http://ubuntu.com/security/notices/USN-4432-1	vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2020-GRUB-UEFI-Se…	vendor-advisoryx_refsource_DEBIAN
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_CONFIRM
https://access.redhat.com/security/vulnerabilitie…	vendor-advisoryx_refsource_REDHAT
https://www.suse.com/c/suse-addresses-grub2-secur…	vendor-advisoryx_refsource_SUSE
https://www.suse.com/support/kb/doc/?id=000019673	vendor-advisoryx_refsource_SUSE
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_CONFIRM
https://lists.gnu.org/archive/html/grub-devel/202…	x_refsource_CONFIRM
https://www.debian.org/security/2020/dsa-4735	vendor-advisoryx_refsource_DEBIAN
http://www.openwall.com/lists/oss-security/2020/07/29/3	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2020073…	x_refsource_CONFIRM
https://usn.ubuntu.com/4432-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/202104-05	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Ubuntu	grub2 in Ubuntu	Affected: 20.04 LTS , < 2.04-1ubuntu26.1 (custom) Affected: 18.04 LTS , < 2.02-2ubuntu8.16 (custom) Affected: 16.04 LTS , < 2.02~beta2-36ubuntu3.26 (custom) Affected: 14.04 ESM , < 2.02~beta2-9ubuntu1.20 (custom)

Date Public

2020-07-29 00:00

Credits

Colin Watson Chris Coulson

Show details on NVD website

JSON

To clipboard

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              "name": "DSA-4735",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4735"
            },
            {
              "name": "[oss-security] 20200729 multiple secure boot grub2 and linux kernel vulnerabilities",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/07/29/3"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200731-0008/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
            },
            {
              "name": "USN-4432-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4432-1/"
            },
            {
              "name": "openSUSE-SU-2020:1169",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html"
            },
            {
              "name": "openSUSE-SU-2020:1168",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html"
            },
            {
              "name": "GLSA-202104-05",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202104-05"
            }
          ]
        },
        "source": {
          "advisory": "USN 4432-1",
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2020-15707",
    "datePublished": "2020-07-29T17:45:34.577Z",
    "dateReserved": "2020-07-14T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:07:49.301Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.