fkie_cve-2022-2601
Vulnerability from fkie_nvd
Published
2022-12-14 21:15
Modified
2024-11-21 07:01
Severity ?
8.6 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Summary
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202311-14
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20230203-0004/
af854a3a-2127-422b-91ae-364da2661108https://arstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202311-14
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230203-0004/
Impacted products
Vendor Product Version
gnu grub2 *
fedoraproject fedora 37
redhat enterprise_linux_eus 9.0
redhat enterprise_linux_for_power_little_endian_eus 9.0
redhat enterprise_linux_server_aus 8.2
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.1
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.2
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.0
redhat enterprise_linux_server_tus 8.2
redhat enterprise_linux_server_update_services_for_sap_solutions 8.1
redhat enterprise_linux_server_update_services_for_sap_solutions 8.2
redhat enterprise_linux_server_update_services_for_sap_solutions 9.0


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{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
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                     matchCriteriaId: "7E48B3B4-3F7F-4169-ABC8-448AA351276E",
                     versionEndIncluding: "2.06",
                     vulnerable: true,
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               negate: false,
               operator: "OR",
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   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
      },
      {
         lang: "es",
         value: "Se encontró un desbordamiento del búfer en grub_font_construct_glyph(). Una fuente pf2 manipulada maliciosamente puede provocar un desbordamiento al calcular el valor max_glyph_size, asignando un búfer más pequeño de lo necesario para el glifo, lo que además provoca un desbordamiento del búfer y una escritura fuera de los límites basada en el heap. Un atacante puede utilizar esta vulnerabilidad para eludir el mecanismo de arranque seguro.",
      },
   ],
   id: "CVE-2022-2601",
   lastModified: "2024-11-21T07:01:19.873",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 8.6,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "CHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.8,
            impactScore: 6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2022-12-14T21:15:10.190",
   references: [
      {
         source: "secalert@redhat.com",
         tags: [
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      },
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         url: "https://security.netapp.com/advisory/ntap-20230203-0004/",
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   sourceIdentifier: "secalert@redhat.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-122",
            },
         ],
         source: "secalert@redhat.com",
         type: "Primary",
      },
   ],
}


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