github - ghsa-849w-6cw8-9p7m

ghsa-849w-6cw8-9p7m

Vulnerability from github

Published

2022-05-24 17:24

Modified

2022-05-24 17:24

Details

There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-14310"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-31T22:15:00Z",
    "severity": "LOW"
  },
  "details": "There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn\u0027t verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.",
  "id": "GHSA-849w-6cw8-9p7m",
  "modified": "2022-05-24T17:24:50Z",
  "published": "2022-05-24T17:24:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14310"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202104-05"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4432-1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-14310 (GCVE-0-2020-14310)

Vulnerability from cvelistv5

Published

2020-07-31 20:55

Modified

2024-08-04 12:39

Severity ?

5.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H

CWE

Summary

There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310	x_refsource_CONFIRM
	https://usn.ubuntu.com/4432-1/	vendor-advisory, x_refsource_UBUNTU
	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html	vendor-advisory, x_refsource_SUSE
	https://security.gentoo.org/glsa/202104-05	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	The Grub2 Project	grub2	Version: 2.06

Show details on NVD website

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